The interior angles of a 25-agon add up to 4140 degrees
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Two angles are complementary if the sum of their measures is 90 degrees.Two angles are supplementary if the sum of their measures is 180 degrees.
Two angles the sum of whose measures is 90 degrees are complimentary angles.
complementary
The sum of the internal angles of any triangle is 180 degrees. Any rectangle has four 90 degree internal angles, totalling 360 degrees.
Measures of what? The interior angles, the exterior angles, the lengths of sides?