Cool Down Lesson 7: Reasoning about Similarity with Transformations Cool Down: Not Quite Similar F 8 19 E 13 B 10 C Lin knows that angle A is congruent to angle D. She claims that triangles ABC and DEF must be similar. Convince Lin that the triangles are not similar. Convince Lin that triangles are not similar because the ratio of the corresponding sides of both triangles are not equal.