Question

Using the figure below, what is the value of y?

A. 12

B. 48

C. 132

D. 180

Answer 1

C. 132

Explanation:

We assume all angle measures are in degrees. The vertical angles are equal in measure, so ...

4x = x +36

3x = 36

x = 12

x +36 = 48

y = 180 -48 = 132

The value of y is 132.