Question

Helppp. Write an equation to solve for a. Then find the missing angle.

Answer 1

90 + 52 + a = 180
142 + a = 180
-142 -142
a = 38

A= 38 degrees

Answer 2

180 = 90 + 52+ a

38 =a

Explanation:

The sum of the angles of a triangle add to 180 degrees

180 = 90 + 52+ a

Combine like terms

180 = 142+a

Subtract 142 from each side

180 -142 = 142+ a -142

38 = a