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The measure of an angle is 157°. What is the measure of its supplementary angle? °
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The measure of an angle is 157°. What is the measure of its supplementary angle? °

User Phk
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Supplementary angle is nothing but straight angle which is equal to 180 degree so..

157+X=180
X=180-157
X=27 degree is the answer.

Hope you understand.
User Manuel Di Iorio
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