SOLUTION: how do you know if 30 degree, 60 degree, 90 degree are a set of supplementary angles?
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Question 120569: how do you know if 30 degree, 60 degree, 90 degree are a set of supplementary angles?
Answer by Vannie(2) (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.
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