Question

What is the value of y?

Answer 1

The value of y is D. 54°

The angles in a triangle must add to 180.
Subtract: 180 - 72 = 108
Then divide 108 by 2 since there are 2 y values.

Answer 2

y = 54°

Explanation:

180 = 72 + y + y ( angles in a triangle)

108 = 2y

y = 54