The supplement of angle measure 81 degrees is calculated as: 99 degrees.
What is the Supplement of an Angle?
The supplement of an angle is simply, 180 - that angle. That is, both angles equals 180 degrees when added together.
Given the angle measure of 81 degrees, the supplement of 81° would be:
180 - 81 = 99°
Supplement of 81° is therefore: 99°.
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