Two angles are called complementary angles if the sum of their measure equals 90°. In other words, if two angles add up to form a right angle they known as complementary angles. Each angle in the pair is said to be the complement of the other.

Complementary Angles are those angles whose sum is equal to 90°. That is, if the sum of two angles produces a right angle, then they are said to be complementary to each other. This property is related to the addition of angles. These angles form a right angle when added together.

Complementary angles are two angles whose measures have a sum of 90°. Each angle is the complement of the other. Complementary angles can be adjacent or non-adjacent. For a right triangle, the two non-right or oblique angles must be complementary.