Congruence Flashcards

All 4 cards in this deck

What does it mean for two shapes to be congruent?

They are exactly the same shape and the same size — all corresponding sides and corresponding angles are equal.

What is the difference between congruent shapes and similar shapes?

Congruent: same shape and same size. Similar: same shape, one is an enlargement of the other.

True or false? If a shape is reflected or rotated it is no longer congruent to the original.

False. Reflecting or rotating does not change size or shape, so the shapes are still congruent.

True or false? Congruent shapes always have the same area and the same perimeter.

True. All corresponding sides are equal, so area and perimeter match.