Question

Find the measure of an angle 20 of which is the complement of an angle of 70 degree

Answer 1

Two angles are called complementary angles, if their sum is one right angle i.e. 90°.

Each angle is called the complement of the other. 

Example, 20° and 70° are complementary angles, because 20° + 70° = 90°.

Clearly, 20° is the complement of 70° and 70° is the complement of 20°.

Thus, the complement of angle 53° = 90° - 53° = 37°.

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