Question

angle c and angle d are supplementary angles. angle c is 5 times as large as angle d.what is measure of angle c?

Answer 1

C + d = 180°(supplementary angle)
C = 5d
5d + d = 180°
6d = 180°
d = 180°/6
d = 30°
Since C = 5d,
C = 5 x 30°
Therefore, C = 150°
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