Asked by Gio

what is the measure of an angle that is supplementary to the following angle.

An Acute angle of 57º
57º+90º=
Answer 147º
Answered by Ms. Sue
A supplementary angle of 57 degrees is 123 degrees.

180 - 57 = 123

Answered by Rachel
If the angle is supplementary to another angle that would mean it would have to be verticle to itself. Since there are 360 degrees in a circle and you are trying to figure 4 angles you do 57+57 and get 114. You then subtract that from 360 to get 246. Since you are putting that number into two angles that are verticle to each other you divide 246 by 2 to get 123 degrees. (:
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