Geometry Flashcards: Circle Similarity

Study Circle Similarity in Geometry with focused flashcards that help you recognize the idea, recall the key rule, and apply it in practice-style prompts.

QUESTION

What is the circle equation after dilating $x^2+y^2=16$ about the origin by $k = \frac{1}{2}$ ?

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ANSWER

$x^2 + y^2 = 4$ . Radius scales from $4$ to $2$ : $(\frac{1}{2})^2 \times 16 = 4$ .

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All flashcards

60 cards

What this deck covers

This deck focuses on Circle Similarity, giving you a quick way to review the definitions, rules, and examples that matter most for Geometry.

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 26Practice questions for this set

Two circles are drawn:

\odot E

and

\odot F

. The center points

E

and

F

are marked, and the radii are different. Which statement explains why the circles are similar by referencing a dilation correctly?

Choose an answer

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