### Home > GC > Chapter 7 > Lesson 7.2.4 > Problem 7-74

7-74.

For each figure below, determine if the two smaller triangles in each figure are congruent. If so, explain why and solve for . If not, explain why not.

Each set of triangles is congruent. Now show why or how.

Congruent because of

, .

Congruent because of

, .