### Home > CCG > Chapter 11 > Lesson 11.2.3 > Problem 11-120

11-120.

. Show all work.

In problem 11-111, it was established that the vertical angles are equal to the average of the two arcs.

Therefore

11-120.

. Show all work.

In problem 11-111, it was established that the vertical angles are equal to the average of the two arcs.

Therefore