Question

the angles measure (30—a) ° and(125+2a)° are supplement to each other find the value of a?

Answer 1

Answer:

Answer is 5° and 175°

Step-by-step explanation:

we know that supplement mean

measure of two angels are 180°

Then

(30-a)° +(125+2a)° =180°

130-a+125+2a = 180°

155+a = 180°

a =180-155

a = 25°

when we put value of a =25 in measurement.

A= (30-25)

A =5°

B = (125+2×25) = (125+50)

B = 175°

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