Question

Use the image to answer the question.

Four pairs of shapes labeled A, B, C, and D.

Differentiating between Figures A–D, which transformation fails to preserve congruence?

(1 point)
Responses

D
D

C
C

B
B

A
A
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Answer 1

I can’t see the image you mention. However, conceptually: translations, rotations and reflections preserve congruence (they keep size and shape). A dilation (scaling) does not preserve congruence unless the scale factor is 1.

So pick the letter whose pair shows the same shape but a different size (one shape larger or smaller than the other). That pair is the one that fails to preserve congruence. If you upload the image or tell me which pair looks resized, I’ll pick the exact letter.