Question

How do I solve this? It says find the value of x, then find the angle measures of the polygon.

Answer 1

180 = 65 + (x-5) + x
-65     -65

115 = x - 5 + x

115 = 2x - 5

2x = 120

x = 60

The angle measures are 65, 60, and 55 degrees.