### Home > GC > Chapter 7 > Lesson 7.2.5 > Problem 7-84

7-84.

,

*, and*

*. Then find*

*.*

How do the angles within a triangle relate to each other? How do the exterior angles relate to those within the triangle?

7-84.

,

How do the angles within a triangle relate to each other? How do the exterior angles relate to those within the triangle?