55 degrees.
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A supplementary angle is a 180-degree angle minus the number of degrees in the given angle.
Supplementary angles add up to 180 degrees
The supplementary angle of 139.7 degrees is 40.3 degrees because they both add up to 180 degrees.
Is it not a supplementary angle. A complementary angle is 90 degrees, so I think that supplementary would be 180 degrees.
An angle of 124 degrees has a supplementary angle that measures 56 degrees. This is calculated by subtracting 124 from 180 degrees (180 - 124 = 56). Supplementary angles are two angles that add up to 180 degrees.