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

Answer:
A. d = 59°
Step-by-step explanation:
We know that the 3 angles added up together are a straight line or 180°. Therefore,
m∠d° = 180 - (57 + 64)
Answer: D. 59
Step-by-step explanation:
57 + 64 + d = 180°
121 + d = 180°
180 - 121 = 59°
Hope this helps!