SOLUTION: how do you know if 30 degree, 60 degree, 90 degree are a set of supplementary angles?

Algebra ->  Points-lines-and-rays -> SOLUTION: how do you know if 30 degree, 60 degree, 90 degree are a set of supplementary angles?      Log On


   

Question 120569: how do you know if 30 degree, 60 degree, 90 degree are a set of supplementary angles?
Answer by Vannie(2) About Me  (Show Source):
You can put this solution on YOUR website!
well it is a supplementary angles bc if it can be divided by two then its a supplementary angle.