Question

Answer the question in the pic​

Answer 1

Let a = measure of angle in degrees.

a = (1/2)(180 - a) - 15

a + 15 = (1/2)(180 - a)

2a + 30 = 180 - a

3a = 150

a = 50°

(1/2)(180 - 50) - 15 =

(1/2)(130) - 15 =

65 - 15 = 50°