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Question 645178: angle "A" measures 81.2 degrees. What is the supplement of angle "A"?
Answer by Matham(1)   (Show Source):
You can put this solution on YOUR website! Hello,
Supplementary angles means that the sum of the two angles is 180.
Angle 'A' is 81.2. It asked for a supplement. Since the other angle is unknown, you take 180 and subtract it from 81.2 and you get 98.8
180 - 81.2 = 98.8
The supplement of angle 'A' is 98.8
You check by adding the 2 angles and if you get 180, it's right!
I hope this helps!
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