Complementary angles add up to 90 degrees
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180 degrees
complementary
Two angles whose sum is 180 degrees are called supplementary angles. When two angles are supplementary, it means that the sum of their measures equals 180 degrees. This relationship is often used in geometry to solve for unknown angles or to identify complementary angles.
Complementary
The sum of two complementary angles is 90 degrees. The sum of two supplementary angles is 180 degrees.