Angle B Measures 60°. What Is the Measure of the Angle That Is Complementary to Angle B?


Question: Angle b measures 60°. What is the measure of the angle that is complementary to angle b?

Two angles are said to be complementary angles if they add up to 90 degrees.

Answer:  Angle a = 30° is the measure of the angle that is complementary to angle b = 60°

Let us find the complementary angle of angle b.

Explanation:

Given that angles a and b are complementary.

⇒ ∠a + ∠b = 90°

⇒ ∠a + 60° = 90°   --------------> given ∠b = 60°

⇒ ∠a = 90° - 60°

⇒ ∠a = 30°

Thus, the measure of the angle that is complementary to angle b is  30°