### 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. The sum of two angles $$35°$$ and $$55°$$ is $$90°$$.

Supplementary angles: Two angles are called Supplementary angles if their sum is $$180°$$.
Example:
The angle pair $$70°$$ and $$110°$$ are supplementary, where the angle $$70°$$ is said to supplement of the other angle $$110°$$, and vice versa. The sum of two angles $$70°$$ and $$110°$$ is $$180°$$.