### Home > MC1 > Chapter 10 > Lesson 10.2.1 > Problem 10-72

10-72.

Find the measures of the lettered angles in the figures below.

Since

andare vertical angles, .

The angles within a triangle add to

.

10-72.

Find the measures of the lettered angles in the figures below.

Since

andare vertical angles, .

The angles within a triangle add to

.