Click Study Flashcards above to open the flashcard hub — 200+ SAT cards you can flip, match, type, or quiz yourself on. Every card is drawn from the eight Digital SAT content domains, so you study exactly what the exam tests.[1] Pair them with our free practice test and study guide.
SAT Flashcard Study Modes
Flip mode lets you turn each card at your own pace, Match times you on pairing terms with definitions, Type asks you to read a definition and spell the term back, and Quiz builds multiple-choice questions straight from the deck. Type is where a card like SOH-CAH-TOA or Discriminant stops feeling familiar and starts being something you can actually produce under pressure.
Why Flashcards Work for the SAT
Geometry and Trigonometry is the largest slice of the deck at 37 cards, covering right-triangle ratios, circle parts, and measurement basics. You get sin θ, cos θ, and tan θ alongside Arc length, Sector area, and the memory aid SOH-CAH-TOA. Standard English Conventions follows with 33 cards on punctuation, agreement, and usage, from FANBOYS and Comma splice to confusion pairs like Its vs it’s and Then vs than.
Advanced Math brings 32 cards on functions, exponents, and quadratics. The Quadratic formula, Discriminant, and Axis of symmetry sit next to rules such as Zero exponent and Function notation. Algebra adds 31 cards on lines and linear reasoning, including Slope formula, Point-slope form, and the difference between x-intercept and y-intercept, plus edge cases like Graph of x = a.
Problem-Solving and Data Analysis holds 30 cards on rates, statistics, and proportional reasoning, drilling Percent change, Unit rate, and the distinction between Median and Mean (average). Craft and Structure contributes 29 cards that blend reading skills with tested vocabulary, so Tone in a passage and Author’s point of view share space with prompts like Vocabulary: ’didactic’ and Vocabulary: ’mitigate’.
The two smallest domains still carry reading and writing points. Information and Ideas has 18 cards on evidence and comprehension moves, including Central idea, Inference question, and the card on What weakens a claim. Expression of Ideas has 17 cards devoted almost entirely to connective logic, with Transition for contrast, Transition ’meanwhile’, and Common transition trap showing how the College Board tests sentence relationships.
That matters for the SAT, which rewards instant recall of grammar rules, math formulas (the quadratic formula, SOH-CAH-TOA, slope), and reading strategies. Used alongside our practice test and study guide, flashcards turn review time into measurable progress.[3]
SAT Flashcards by Domain
The cards are organized by the eight Digital SAT content domains. Weight your study toward the heaviest ones — Algebra and Advanced Math dominate Math, and grammar rules in Standard English Conventions are some of the fastest points to win:[2]
| Section | Content domain | Approx. share |
|---|---|---|
| Reading & Writing | Craft and Structure | ~28% of R&W |
| Reading & Writing | Information and Ideas | ~26% of R&W |
| Reading & Writing | Standard English Conventions | ~26% of R&W |
| Reading & Writing | Expression of Ideas | ~20% of R&W |
| Math | Algebra | ~35% of Math |
| Math | Advanced Math | ~35% of Math |
| Math | Problem-Solving & Data Analysis | ~15% of Math |
| Math | Geometry & Trigonometry | ~15% of Math |
How to Get the Most Out of These Flashcards
- Start with the biggest pile. Geometry and Trigonometry has 37 cards, more than any other domain, and its formulas are pure recall, so early Flip passes there pay off fast.
- Type the formulas you must write from scratch. Drill Quadratic formula and Slope formula in Type mode until you can produce them without hesitating, since recognition alone will not help on grid-in questions.
- Use Match for vocabulary and usage. The Craft and Structure word cards, such as Vocabulary: ’cogent’, and the confusion pairs in Standard English Conventions pair well under time pressure.
- Move to the practice test once Quiz feels easy. When you clear a domain’s cards with few misses, switch to full questions so you practice applying terms inside passages and word problems.
- Rotate two domains per sitting. With 227 cards total, cycling a math domain and a reading or writing domain each session keeps the smaller sets, like Expression of Ideas, from going stale.
SAT Flashcards FAQ
Hundreds of free SAT flashcards, organized across all eight content domains tested on the Digital SAT — the four Reading and Writing domains and the four Math domains. They're free to use with no account required.
Yes. Flashcards use active recall — retrieving an answer from memory — which research shows is one of the most effective ways to make information stick, especially for the grammar rules, math formulas, and vocabulary skills the SAT tests.
All eight domains: Craft and Structure, Information and Ideas, Expression of Ideas, and Standard English Conventions (Reading and Writing), plus Algebra, Advanced Math, Problem-Solving and Data Analysis, and Geometry and Trigonometry (Math).
Mix the modes: flip to learn, type to test recall, match for speed, and quiz to check yourself. Start early, review daily, and drill your weakest domain — the cards make grammar rules and math formulas stick through repetition.
Yes — 100% free, all four study modes, no paywall.
SAT flashcard bank
All 227 cards, by topic
A reference copy of every card in this deck. Each answer stays hidden until you choose to show it. To study with Flip, Match, Type and Quiz modes and track what you have mastered, use Study Flashcards at the top of the page.
Craft and Structure (29)
- Words in Context question
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Asks you to choose the word or phrase that best completes a passage based on its surrounding meaning. Predict your own word first, then match.
- Text Structure and Purpose question
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Asks why the author wrote a text or how a part functions within it (e.g., introduces a counterargument, gives an example).
- Cross-Text Connections question
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Gives two short passages on one topic and asks how the authors' viewpoints relate — support, challenge, or extend.
- Best strategy for Words in Context
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Predict your own word for the blank before reading the choices; a correct synonym can still be wrong if the tone or connotation clashes.
- Connotation vs denotation
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Denotation is a word's literal dictionary meaning; connotation is its emotional or tonal association. The SAT tests both.
- What 'main purpose' means
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The author's overall goal for the text — to inform, persuade, describe, or analyze — not a single detail in it.
- Tone in a passage
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The author's attitude toward the subject (e.g., critical, admiring, skeptical), revealed through word choice.
- How to handle a paired-passage question
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Pin down each author's claim separately, then describe how Text 2 responds to Text 1 (agrees, disagrees, qualifies, adds).
- Rule for evidence in R&W
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Every correct answer must be supported by the passage itself — never by outside knowledge or what is merely true in the real world.
- Function of a transitional sentence
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It may shift focus, introduce a contrast, or signal a conclusion — identify the role it plays, not just its content.
- Author's point of view
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The perspective from which the text is written; it shapes which details the author emphasizes.
- Reading the part after the blank
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Always read the whole sentence, including text after the blank — it often determines the right word in context.
- Connotation in answer choices
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Two synonyms can differ in feel; pick the one whose connotation matches the passage's tone.
- Identifying the claim
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Before answering, restate the author's main claim in your own words.
- Vocabulary: 'ambivalent'
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Having mixed or contradictory feelings about something.
- Vocabulary: 'arbitrary'
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Based on random choice or personal whim, not reason or system.
- Vocabulary: 'candid'
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Truthful and straightforward; frank.
- Vocabulary: 'cogent'
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Clear, logical, and convincing.
- Vocabulary: 'didactic'
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Intended to teach, often with a moral lesson.
- Vocabulary: 'empirical'
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Based on observation or experiment rather than theory.
- Vocabulary: 'nuanced'
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Characterized by subtle distinctions or shades of meaning.
- Vocabulary: 'pragmatic'
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Dealing with things sensibly and practically.
- Vocabulary: 'skeptical'
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Not easily convinced; having doubts or reservations.
- Vocabulary: 'ubiquitous'
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Present, appearing, or found everywhere.
- Vocabulary: 'undermine'
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To weaken or damage something, often gradually.
- Vocabulary: 'novel' (adjective)
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New or original; not previously known.
- Vocabulary: 'comprehensive'
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Complete; covering all or nearly all elements.
- Vocabulary: 'substantiate'
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To provide evidence to support or prove a claim.
- Vocabulary: 'mitigate'
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To make something less severe or serious.
Information and Ideas (18)
- Central idea
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The main point a passage makes — the claim the whole text supports, broader than any single detail.
- Command of evidence (textual)
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Asks which quotation from the passage best supports a given claim or conclusion.
- Command of evidence (quantitative)
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Gives a graph or table and asks which choice the data supports. Read the axis labels and units first.
- Inference question
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Asks for a conclusion the passage implies but does not state. Pick the best-supported choice, not the most extreme.
- Detail question
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Asks for a specific fact the passage states. The answer is directly in the text.
- How to avoid inference traps
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Eliminate any choice that needs information the passage never provides, and any that overstate or distort the text.
- Reading a graph for evidence
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Check the title, axis labels, and units before the answer choices; the right choice must match both the data and the claim.
- Main idea vs supporting detail
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The main idea is the overall point; a supporting detail is one piece of evidence that backs it up.
- Summarizing a passage
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Capture the central claim and how the author supports it — leave out minor examples.
- Implicit vs explicit
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Explicit information is stated outright; implicit information must be inferred from what the text implies.
- Why 'most strongly supported' matters
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The credited inference is the one the text most directly supports — not merely plausible or interesting.
- Quantitative claim support
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The right data choice must be accurate to the graph AND relevant to the claim being made.
- Eliminating extreme answers
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Reject inferences using 'always,' 'never,' or 'only' unless the text fully supports them.
- Synthesizing across a passage
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Combine multiple details into the single conclusion the whole text supports.
- Counterargument
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A point that opposes the author's claim; authors raise it to address or refute it.
- Hypothesis in a science passage
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A proposed, testable explanation; questions may ask which result would support or weaken it.
- Identifying the strongest evidence
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The best evidence directly and specifically backs the exact claim, not a related idea.
- What weakens a claim
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Evidence that contradicts the claim or shows its reasoning fails.
Expression of Ideas (17)
- Rhetorical Synthesis question
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Gives bulleted notes and a stated goal, and asks for the sentence that uses the notes to meet that goal.
- Transitions question
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Tests the logical relationship between ideas — choose the transition that matches (contrast, cause, addition, example).
- Transition for contrast
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However, nevertheless, on the other hand, conversely, yet — signals the second idea opposes the first.
- Transition for cause/effect
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Therefore, thus, consequently, as a result — signals the second idea follows from the first.
- Transition for addition
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Furthermore, moreover, in addition, also — signals the second idea adds to the first.
- Transition for example
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For example, for instance, specifically — signals an illustration of the prior idea follows.
- Transition for sequence
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First, next, then, finally, subsequently — signals order in time or steps.
- How to solve a transition question
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Cover the choices, name the relationship between the two ideas yourself, then pick the matching transition.
- Common transition trap
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A contrast word (however) where the ideas actually agree, or 'for example' where no example follows.
- How to handle synthesis goals
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Read the goal first (e.g., 'emphasize a difference'), then choose the sentence that actually accomplishes it.
- Concise writing on the SAT
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When choices say the same thing, the shortest grammatically correct, unambiguous one is usually right.
- Choosing the best transition
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Match the transition to the actual logic — don't be swayed by a familiar-sounding word.
- Transition 'in fact'
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Emphasizes or intensifies the previous statement.
- Transition 'likewise/similarly'
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Signals that the second idea is comparable to the first.
- Transition 'in contrast'
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Signals opposition between two ideas.
- Transition 'as a result'
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Signals an effect or consequence.
- Transition 'meanwhile'
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Signals events happening at the same time.
Standard English Conventions (33)
- Independent clause
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A group of words with a subject and verb that can stand alone as a complete sentence.
- Dependent (subordinate) clause
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Has a subject and verb but cannot stand alone (e.g., 'because it rained'); it depends on a main clause.
- Comma splice
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Two independent clauses joined by only a comma — an error. Fix with a period, semicolon, or comma + conjunction.
- Joining two independent clauses
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Use a period, a semicolon, or a comma plus a FANBOYS conjunction (and, but, or, nor, for, so, yet).
- FANBOYS
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The seven coordinating conjunctions: for, and, nor, but, or, yet, so.
- When to use a semicolon
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To join two closely related independent clauses without a conjunction.
- When to use a colon
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After a complete sentence, to introduce a list, explanation, or example.
- Subject-verb agreement
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A verb must match its subject in number; ignore words between them and match the true subject.
- Pronoun-antecedent agreement
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A pronoun must match its antecedent in number (a company = 'it,' not 'they').
- Its vs it's
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'Its' is possessive (its color); 'it's' means 'it is' (it's raining).
- Their vs there vs they're
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'Their' = possessive; 'there' = place; 'they're' = 'they are.'
- Who vs whom
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'Who' is the subject (who called?); 'whom' is the object (to whom did you speak?).
- Dangling modifier
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An opening modifier that doesn't logically describe the noun right after the comma. Fix by putting the right noun there.
- Parallel structure
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Items in a list or comparison must share the same grammatical form (running, swimming, biking).
- Verb tense consistency
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Keep verb tense consistent with the timeline the passage establishes.
- Apostrophe for possession
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Singular: add 's (the dog's bone); plural ending in s: add only ' (the dogs' bones).
- Nonessential clause punctuation
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Set off nonessential information with a pair of commas, dashes, or parentheses.
- Restrictive vs nonrestrictive
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Restrictive info is essential (no commas); nonrestrictive info is extra (use commas).
- Comma after an introductory phrase
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Place a comma after an introductory word, phrase, or dependent clause before the main clause.
- Pronoun case
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Use subject pronouns (I, he, she, they) as subjects and object pronouns (me, him, her, them) as objects.
- Sentence fragment
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A group of words missing a subject, verb, or complete thought; not a complete sentence.
- Run-on sentence
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Two independent clauses joined with no punctuation or conjunction.
- Colon vs semicolon
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A colon introduces (list/explanation after a full sentence); a semicolon joins two full sentences.
- Possessive plural noun
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For a plural noun ending in s, add only an apostrophe (the students' books).
- Singular 'they' vs antecedent
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On the SAT, match a pronoun to its antecedent's number; a singular antecedent usually takes 'it' or 'he/she.'
- Comparative vs superlative
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Comparative compares two (taller); superlative compares three or more (tallest).
- Fewer vs less
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'Fewer' for countable nouns (fewer cars); 'less' for uncountable (less water).
- Affect vs effect
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'Affect' is usually a verb (to influence); 'effect' is usually a noun (a result).
- Then vs than
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'Then' refers to time; 'than' is used in comparisons.
- Modifier must touch its noun
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Place a descriptive phrase next to the word it modifies to avoid ambiguity.
- Verb agreement with collective nouns
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Treat a group (team, jury) as singular when acting as one unit.
- Apostrophe is never for plurals
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Don't add an apostrophe to make a noun plural (cats, not cat's).
- Em dash uses
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A dash can set off a nonessential element or introduce an emphatic addition.
Algebra (31)
- Slope formula
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Slope m = (y₂ − y₁) ÷ (x₂ − x₁) — the rise over the run between two points.
- Slope-intercept form
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y = mx + b, where m is the slope and b is the y-intercept (where the line crosses the y-axis).
- Standard form of a line
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Ax + By = C. Convert to y = mx + b to read the slope and intercept.
- Point-slope form
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y − y₁ = m(x − x₁), using a known point (x₁, y₁) and slope m.
- Slopes of parallel lines
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Parallel lines have equal slopes.
- Slopes of perpendicular lines
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Perpendicular slopes are negative reciprocals; their product is −1.
- Slope of a horizontal line
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Zero (no rise).
- Slope of a vertical line
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Undefined (no run).
- Solving a system by substitution
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Solve one equation for a variable, substitute into the other, then solve.
- Solving a system by elimination
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Add or subtract the equations to cancel one variable, then solve for the other.
- System with no solution
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The lines are parallel — same slope, different y-intercept.
- System with infinite solutions
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The two equations are multiples of each other (the same line).
- Solving a linear inequality
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Solve like an equation, but flip the inequality sign when multiplying or dividing by a negative.
- Graphing a linear inequality
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Solid line for ≤ or ≥, dashed for < or >; shade the side that satisfies the inequality.
- Solution to an equation
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The value(s) of the variable that make the equation true.
- x-intercept
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Where a graph crosses the x-axis (y = 0).
- y-intercept
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Where a graph crosses the y-axis (x = 0); the b in y = mx + b.
- Absolute value equation
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|x| = a (a ≥ 0) has two solutions: x = a and x = −a.
- Direct proportion
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y = kx: y changes by a constant factor k as x changes; the graph passes through the origin.
- Distributing
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a(b + c) = ab + ac.
- Combining like terms
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Add or subtract terms with the same variable and exponent (3x + 5x = 8x).
- Cross-multiplying
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For a/b = c/d, ad = bc — used to solve proportions.
- Literal equation
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An equation solved for one variable in terms of others (solve A = lw for w → w = A/l).
- Linear function rate of change
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The slope is the constant rate of change of y with respect to x.
- Interpreting b in context
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In y = mx + b, b is the starting value (the y-value when x = 0).
- Interpreting m in context
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The slope m is the amount y changes for each one-unit increase in x.
- Solving for a variable
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Use inverse operations to isolate the variable on one side.
- Graph of x = a
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A vertical line through x = a.
- Graph of y = a
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A horizontal line through y = a.
- Number of solutions (one line)
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A single linear equation in one variable has exactly one solution unless it's contradictory or an identity.
- Identity equation
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True for all values (e.g., 2x + 2 = 2(x + 1)) → infinitely many solutions.
Advanced Math (32)
- Quadratic equation
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An equation of the form ax² + bx + c = 0; its graph is a parabola.
- Quadratic formula
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x = (−b ± √(b² − 4ac)) ÷ (2a), which solves any quadratic ax² + bx + c = 0.
- Discriminant
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b² − 4ac. Positive → two real solutions; zero → one; negative → none.
- Difference of squares
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a² − b² = (a + b)(a − b).
- Perfect-square trinomial
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(a + b)² = a² + 2ab + b²; (a − b)² = a² − 2ab + b².
- Factoring a quadratic
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Find two numbers that multiply to ac and add to b, then split the middle term.
- Vertex form of a parabola
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y = a(x − h)² + k, with vertex (h, k).
- Vertex of a parabola
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The maximum (a < 0) or minimum (a > 0) point; x-coordinate is −b ÷ (2a).
- Sum of the roots
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For ax² + bx + c = 0, the roots add to −b ÷ a.
- Product of the roots
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For ax² + bx + c = 0, the roots multiply to c ÷ a.
- Exponent product rule
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xᵐ · xⁿ = xᵐ⁺ⁿ.
- Exponent quotient rule
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xᵐ ÷ xⁿ = xᵐ⁻ⁿ.
- Power of a power rule
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(xᵐ)ⁿ = xᵐⁿ.
- Negative exponent
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x⁻ⁿ = 1 ÷ xⁿ.
- Zero exponent
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x⁰ = 1 (for x ≠ 0).
- Fractional exponent
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A fractional exponent means a root: x to the power 1/n is the nth root of x, and x to the power m/n is the nth root of x raised to m.
- Function notation
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f(x) is the output for input x; f(3) means evaluate the function at x = 3.
- Exponential function
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y = a · bˣ: grows by a constant percent if b > 1, decays if 0 < b < 1.
- Linear vs exponential growth
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Linear adds a constant amount each step; exponential multiplies by a constant factor each step.
- Growth/decay factor
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A 5% increase makes b = 1.05; a 5% decrease makes b = 0.95 in y = a·bˣ.
- Polynomial
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A sum of terms with whole-number exponents (e.g., 2x³ − x + 4).
- Zero of a function
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An input x where f(x) = 0; it is an x-intercept of the graph.
- Completing the square
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Rewrite ax² + bx + c into a(x − h)² + k form to find the vertex.
- Rational expression
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A ratio of polynomials; simplify by factoring and canceling common factors.
- Roots / x-intercepts
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The solutions of f(x) = 0; where the graph crosses the x-axis.
- Axis of symmetry
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The vertical line x = −b ÷ (2a) through a parabola's vertex.
- Maximum vs minimum (parabola)
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Opens up (a > 0) → minimum at the vertex; opens down (a < 0) → maximum.
- Multiplying binomials (FOIL)
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(a + b)(c + d) = ac + ad + bc + bd.
- Sum/difference of cubes
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a³ + b³ = (a + b)(a² − ab + b²); a³ − b³ = (a − b)(a² + ab + b²).
- Domain of a function
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The set of all allowable input (x) values.
- Range of a function
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The set of all output (y) values the function produces.
- Extraneous solution
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A solution that appears algebraically but fails the original equation; check radical/rational answers.
Problem-Solving and Data Analysis (30)
- Percent change
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Change ÷ original value × 100. Always divide by the starting amount.
- Increase a number by a percent
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Multiply by (1 + the percent as a decimal); +25% means × 1.25.
- Decrease a number by a percent
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Multiply by (1 − the percent as a decimal); −25% means × 0.75.
- Percent of a number
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Convert the percent to a decimal and multiply (20% of 50 = 0.20 × 50 = 10).
- Setting up a proportion
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Write two equal ratios and cross-multiply to solve (a/b = c/d → ad = bc).
- Unit rate
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A rate with a denominator of 1 (miles per 1 hour); divide to find it.
- Mean (average)
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Sum of the values ÷ how many there are; sensitive to outliers.
- Median
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The middle value of an ordered data set; resists outliers.
- Mode
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The most frequently occurring value in a data set.
- Range (statistics)
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The largest value minus the smallest value.
- Standard deviation
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A measure of spread around the mean; larger means more spread out.
- Effect of an outlier
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An outlier pulls the mean toward it but barely affects the median.
- Skew and the mean
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Right-skewed: mean > median; left-skewed: mean < median.
- Probability
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Favorable outcomes ÷ total outcomes; always between 0 and 1.
- Reading a two-way table
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Find the value at the right row and column; for 'given that,' divide within that subgroup.
- Conditional probability
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P(A given B) uses only the cases where B happens as the denominator.
- Margin of error / sampling
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A larger random sample narrows the margin of error and improves an estimate's reliability.
- Line of best fit
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A line that models the trend in scattered data; its slope shows the rate of change.
- Converting units
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Multiply by a conversion factor equal to 1 (e.g., 60 min / 1 hr) so unwanted units cancel.
- Probability of 'not' an event
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P(not A) = 1 − P(A).
- Expected value idea
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A long-run average outcome — weight each outcome by its probability and add.
- Reading a scatterplot
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A positive trend rises left to right; a negative trend falls; strength is how tightly points cluster.
- Average speed
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Total distance ÷ total time (not the average of the speeds).
- Compound interest idea
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Interest earned on both principal and accumulated interest; modeled by an exponential function.
- Percent greater than
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If A is 30% greater than B, A = 1.30 × B.
- Ratio to total
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If a ratio is 3:2, the parts are 3/5 and 2/5 of the total.
- Frequency table mean
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Multiply each value by its frequency, sum, then divide by the total frequency.
- Interpreting slope of a model
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The slope is the predicted change in the output per one-unit change in the input.
- Random sampling validity
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A conclusion can be generalized only to the population the sample was randomly drawn from.
- Correlation vs causation
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A relationship in data does not by itself prove one variable causes the other.
Geometry and Trigonometry (37)
- Pythagorean theorem
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For a right triangle with legs a, b and hypotenuse c: a² + b² = c².
- Area of a triangle
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½ × base × height.
- Area of a rectangle
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length × width.
- Area of a circle
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πr², where r is the radius.
- Circumference of a circle
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2πr (or πd, where d is the diameter).
- SOH-CAH-TOA
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sin θ = opposite/hypotenuse; cos θ = adjacent/hypotenuse; tan θ = opposite/adjacent.
- sin θ
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Opposite ÷ hypotenuse in a right triangle.
- cos θ
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Adjacent ÷ hypotenuse in a right triangle.
- tan θ
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Opposite ÷ adjacent in a right triangle.
- 45-45-90 triangle
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Side ratio 1 : 1 : √2 (legs equal, hypotenuse = leg × √2).
- 30-60-90 triangle
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Side ratio 1 : √3 : 2 (short leg : long leg : hypotenuse).
- Complementary angle trig identity
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sin θ = cos(90° − θ): the sine of an angle equals the cosine of its complement.
- Sum of a triangle's angles
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180°.
- Angles on a straight line
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Sum to 180° (supplementary).
- Angles around a point
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Sum to 360°.
- Complementary vs supplementary angles
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Complementary angles sum to 90°; supplementary angles sum to 180°.
- Parallel lines cut by a transversal
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Corresponding and alternate angles are equal; co-interior angles sum to 180°.
- Similar triangles
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Same shape, proportional sides, equal angles; set up a ratio to find a missing side.
- Equation of a circle
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(x − h)² + (y − k)² = r², center (h, k), radius r.
- Arc length
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(central angle ÷ 360°) × circumference.
- Sector area
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(central angle ÷ 360°) × πr².
- Volume of a rectangular prism
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length × width × height.
- Volume of a cylinder
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πr²h (base area × height).
- Radians and degrees
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180° = π radians; multiply degrees by π/180 to convert to radians.
- Inscribed angle
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An inscribed angle is half the central angle that subtends the same arc.
- Surface area concept
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The total area of all faces of a 3-D solid; add the areas of each face.
- Diameter vs radius
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The diameter is twice the radius (d = 2r).
- Perimeter
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The total distance around a 2-D shape (sum of the side lengths).
- Triangle inequality
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The sum of any two sides of a triangle is greater than the third side.
- Isosceles triangle
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Two equal sides and two equal base angles.
- Equilateral triangle
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All three sides equal and all angles 60°.
- Exterior angle of a triangle
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Equals the sum of the two non-adjacent interior angles.
- Congruent vs similar
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Congruent = same size and shape; similar = same shape, proportional sizes.
- Central angle
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An angle whose vertex is the center of a circle; equals its intercepted arc's measure.
- Tangent to a circle
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A line touching the circle at one point; it is perpendicular to the radius at that point.
- Volume of a cone
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(1/3)πr²h.
- Volume of a sphere
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(4/3)πr³.
References
- 1.College Board. “How the SAT Is Structured — SAT Suite.” College Board. ↑
- 2.College Board. “What Are Content Domains? — SAT Suite.” College Board. ↑
- 3.Institute of Education Sciences (U.S. Dept. of Education). “Organizing Instruction and Study to Improve Student Learning (Practice Guide).” What Works Clearinghouse, IES. ↑
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