Question

Which of the options below show a pair of supplementary angles? Select all that apply.

A) 160°, 20°
B) 120°, 40°
C) 45°, 135°
D) 30°, 120°

Answer 1

A and C

Explanation:

A) 160 + 20 = 180

B) 120 + 40 = 160

C) 45 + 135 = 180

D) 30 + 120 = 150

All supplementary angles must add up to 180 degrees.