Question

(a-30)*and (2a)*are the measure of two supplementary angles. Find the measure of each angle

Answer 1

Answer:

40* and 140*

Step-by-step explanation:

a-30* and 2a* are two supplementary angles.

As we know that the sum of two supplementary anges is equal to 180*

Therefore, a-30* + 2a* = 180*

a-30 + 2a = 180

3a - 30 = 180

3a = 180 + 30

3a = 210

a = 210 ÷ 3

a = 70

• 1st angle (a-30) = 70 - 30 = 40*

• 2nd angle (2a) = 2 x 70 = 140*

HOPE IT HELPS YOU!

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