### Home > GC > Chapter 7 > Lesson 7.2.1 > Problem 7-52

7-52.

Use the geometric relationships in the diagrams below to solve for .

This is an isosceles triangle. Are there any special qualities about isosceles triangles that you know?

Base angles in an isosceles triangles are congruent.

then take .

Both base angles will be.

Both base angles are

. See part (a) for help.