Definition Of Complementary Angles

Complementary Angles are two acute angles that add up to give a right angle, 90°.

Example of Complementary Angles

34°, 56° and 28°, 62° are examples of complementary angles.

Video Examples: Complementary Angles

Solved Example onComplementary Angles

Ques: If m∠A is 26, then find the measure of its complement.

Choices:

A. 34°
B. 56°
C. 64°
D. 25°
Correct Answer: C

Solution:

Step 1: Complement of m∠A = 90 - m∠A = 64.

Related Worksheet

• Complementary,-Supplementary,-Vertical-and-adjacent-Angles-Gr-7
• Parallel-Lines-and-Transversals-Gr-8