Question

What makes a complementary angle complementary?​

Answer 1

Complementary angles are defined as 2 angles that collectively add to make 90°

So an example of this would be 45° and 45° as they add up to be 90°
Another example: 60°+30° = 90°
These would be complimentary angles

Answer 2

Two angles are called complementary if their measures add to 90 degrees, and called supplementary if their measures add to 180 degrees.

Explanation: