### Home > GC > Chapter 6 > Lesson 6.1.2 > Problem 6-17

6-17.

Solve the problem below using any method. Show all work.

Angle of

*measures*

*. Angle*

*measures*

*. Find the measure of angles*

*,*

*, and*

*.*

Set up equations that represent the information you are given.

What is the sum of the angles within a triangle?

How can you use this to find

Once you know and

*.*

Substitute.

Solve for .