Two angles are complementary. One of the angles has a measure of 20°. What is the measure of the other angle?

Question

Can someone please help me i'm stuck please :((((

Answer 1

Two angles are complimentary of their angles add up to 90°. So what must the other angle be for them to add up to 90°? That's your answer.

The key to many problems like this is to remember the definitions of new math terms. In this case: the definition of "complimentary".