SOLUTION: What are complementary and supplementary angles? The text book is by McDougal Littell. Middle school math.
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Question 37391: What are complementary and supplementary angles? The text book is by McDougal Littell. Middle school math.
Answer by fractalier(6550) (Show Source): You can put this solution on YOUR website!
Complementary angles are angles which add up to 90 degrees, e.g. a 70 degree angles and a 20 degree angle.
Supplementary angles are angles which add up to 180 degrees, e.g. a 109 degree angle and a 71 degree angle.
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