GRE Quantitative Flashcards: Lines Angles Triangles

Study Lines Angles Triangles in GRE Quantitative with focused flashcards that help you recognize the idea, recall the key rule, and apply it in practice-style prompts.

QUESTION

What are the side-length ratios of a $30^\circ$ - $60^\circ$ - $90^\circ$ triangle?

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ANSWER

$1:\sqrt{3}:2$ . In a $30^\circ$ - $60^\circ$ - $90^\circ$ triangle, sides are in the ratio shortest to middle to hypotenuse as $1 : \sqrt{3} : 2$ .

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What this deck covers

This deck focuses on Lines Angles Triangles, giving you a quick way to review the definitions, rules, and examples that matter most for GRE Quantitative.

How to use these flashcards

Work through these flashcards in short sessions. Try to answer each prompt before flipping the card, then revisit any cards you miss until the explanation feels automatic.

Practice questions

1 of 16Practice questions for this set

Triangle

ABC

is equilateral. Point

D

lies on segment

BC

. What is the measure of

\angle ADB

AD

is perpendicular to

BC

Choose an answer

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