Coterminals and Reference Angles

Question

List three angles that are co-terminal with 78º.

Answer 1

First one is 78^o + 360^o = 438^o

You can continue the pattern. Add another 360^o for the next one and one more time for the third time.

When you add angle, you go counterclockwise.

The other way you can answer this question, is to SUBTRACT 360^o one or more time. The angles are still co-terminal with your initial angle.