### Home > GC > Chapter 6 > Lesson 6.2.5 > Problem 6-84

6-84.

For each part below, decide if the triangles are similar. If they are similar, use their similarity to solve for . If they are not similar, explain why not.

Parallel lines have equal corresponding angles, so .

By shared angles,

*.*

By

Is there enough information to prove that the triangles are similar?

Use the same method as for part (a).

Vertical angles are equal, so .

Parallel lines have equal alternate interior angles, so

*.*

Triangles are similar by