Question

What is the measure of angle d?
A. d=59
B. d=114
C. d=55
D. d=66

Answer 1

Answer: D. 59

Explanation:

57 + 64 + d = 180°

121 + d = 180°

180 - 121 = 59°

Hope this helps!

Answer 2

A. d = 59°

Explanation:

We know that the 3 angles added up together are a straight line or 180°. Therefore,

m∠d° = 180 - (57 + 64)