### Home > CCG > Chapter 2 > Lesson 2.1.5 > Problem 2-55

2-55.

Solve for in the diagram at right.

What is the relationship between angles

The angle .

Since angles and

*are corresponding angles on two parallel lines intersected by a transversal, they are also congruent.*

The same rule applies to angle and the angle valued

Since , what can we conclude? Use your conclusion to solve for

*.*