Question

Two angles measure (30 -a) and ( 125 + 2a). If each one is supplement of the other then the value of a is *

Answer 1

Answer:

one angle =(30-a)

another angle = (125+2a)

sum of supplementary angles = 180

A.T.Q.

(30+a)+(125+a) =180

30+a+125+a=180

155+2a=180

2a=180-155=25

a=25/2

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