Question

\angle a∠aangle, a and \angle b∠bangle, b are complementary angles. \angle a∠aangle, a measures 67^\circ67

∘
67, degrees.
What is the measure of \angle b∠bangle, b?

Answer 1

68

Explanation:

right on khan

Answer 2

Assuming the question is asking for angle B, it measures 23°

Explanation:

If angle A = 67°, and angle A and angle B are complementary, then you know they add up to 90°.

angle A + angle B = 90°

67° + Angle B = 90°

Angle B = 23°