Complementary angles total 90o so 90 - 80 = 10; the complementary angle is 10o.
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Angles can be complementary. A 100 degree angle is a complementary angle to an 80 degree angle in geometry studies.
10
Let the angle be A, then the supplementary angle is (180 - A) and the complementary angle is (90 - A). But, 180 - A = 10(90 - A) = 900 - 10A 9A = 720 A = 80° The supplementary angle = 100° and the complementary angle = 10°
Complementary angle = 90 - 71 = 19 degrees
A pair of angles are complementary if their sum adds up to 90 degrees. Therefore, in this case, the angle complementary to 23.5 degrees is 90 - 23.5 = 66.5 degrees.