Question

Angle AOB and angle AOC are complementary angles. What is the measure of angle AOB if the measure of angle AOC is 37°?

A. 53°

B. 63°

C. 323°

D. 143°

Answer 1

90-37=53 complementary angles are 90 degrees

Answer 2

Option A, 53°

Explanation:

If the two angles are complimentary to each other then sum of these angles is equal to 90°.

∠AOB + ∠AOC = 90°

If ∠AOC = 37°

Then ∠AOB = 90° - ∠AOC

= 90° - 37°

= 53°

Option A 53° is the answer.