#### All circles are ___________ . (congruent, similar)

Anonymous

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Krishna

0

Step 1: Verify the Congruent principle.

NOTE: Two circles are congruent if they have the same size and shape.

The size can be measured as the radius, diameter or circumference.

They can overlap.

Two circles are congruent if they have the same diameter

So, All circle are not congruent.

Step 2: Check the similarity principle

DEFINITION: Two figures are **similar** means that they share a common shape. They can be different sizes, but they must have the same shape. For example, observe this image of the butterflies:

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So, Any two circles are similar because they have the common shape but they are in different sizes.