i have no idea. im doing y math homework righ t now. this is what its on
Supplementary angle = 180 - the angle
So supplementary to 91 = 180 - 91 = 89 degrees.
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the answer to 180 degree angle is 72 degree angle.
Supplement of a 67 degree angle is 180 - 67 or 113.
a 175 degree angle
A 90 degree angle
72 degrees