Two angles whose measures add to 90 are complementary angles. An example is 45 and 45.
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Complementary angles add to 90 degrees.
They are complementary angles that add up to 90 degrees
Supplementary angles are 2 angles whose measures = 180o.
supplementaryA:Two angles whose sum measures a right angle are complementary angles.
SUPPLEMENTARY ANGLES are two angles the sum of whose measures is 180 degrees.