SOLUTION: how do you figure out if pairs of angles are supplementary or complementary?

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Question 564637: how do you figure out if pairs of angles are supplementary or complementary?
Answer by ad_alta(240) About Me  (Show Source):
You can put this solution on YOUR website!
Supplementary angles sum to 180 degrees, while complementary angles sum to 90 degrees. If two angle are supplementary two of their sides will appear to form a straight line. If they are complementary two of their sides will be perpendicular and appear to form an 'L' (or mirror 'L').