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Mathematics 20 Online
OpenStudy (anonymous):

how can you notice complementary angles?

OpenStudy (noseboy908):

If I understand your question correctly, you can notice them by seeing the angle that is formed. Complementary angles, by definition, are of 90 degree angles, or of a right angle.

OpenStudy (aum):

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OpenStudy (anonymous):

2 angles that add up to 90 degrees are complementary

OpenStudy (anonymous):

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