A pair of supplementary angles add up to 180 degrees. Therefore, the supplement of any angle x is equal to 180 - x degrees. For example, the supplement of a 130 degree angle is equal to 180 - 130 = 50 degrees.
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The measure of the exterior angle.
Its supplementary angle is 160 degrees because supplementary angles add up to 180 degrees
150 degrees
74
It is the supplementary angle of 125 degrees which is 55 degrees