### Theory:

Complementary angles: Two angles are called Complementary angles if their sum is $$90°$$.
Example:
The angle pair $$35°$$ and $$55°$$ are complementary, where the angle $$35°$$ is said to complement of the other angle $$55°$$, and vice versa.

Supplementary angles: Two angles are called Supplementary angles if their sum is $$180°$$.
Example:
$$180°$$ is the sum of the angle whose measures $$70°$$ and $$110°$$ given in the figure. When two angles are supplementary, it is said that each angle is the addition of the other.