### Home > GC > Chapter 6 > Lesson 6.1.2 > Problem 6-13

6-13.

**Examine** the relationships that exist in the diagram at right. Find the measures of angles ,

*,*

*, and*

*. Remember that you can find the angles in any order, depending on the angle relationships you use.*

Notice the pair of parallel lines and the triangle.

Refer to the Math Notes box in Lesson 2.1.4 for extra help.