What additional information is needed to prove the triangles similar by the SAS Similarity Criterion?

if two sides of one triangle are proportional to two sides of another triangle and their included angles are congruent, then the triangles are similar.

Step-by-step explanation:

SAS requires two sides have same ratio and the included angle to be congruent.

We are given two sides with ratio:

The missing information is the congruence of the included angle:

Correct answer choice is C

"image"

step-by-step explanation:

in most of these problems, the notation is that the point with a "prime" is the image of the point without. that is, b' is the image of b.

here, there is no dilation or reflection. there is simply translation (with no direction shown). which figure you call the "preimage" and which one you call the "image" is up to you. as a matter of convention, the naming is as described above.