Question

If the measure of an angle is twice the measure of its supplementary angle, find the angle.
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Answer 1

Answer: 120 degrees

Let the angle be 'x'

Let its supplementary angle be '180 - x'

(Because supplementary angles add up to 180 degrees)

Given angle is twice its supplement

Therefore, x = 2(180 - x)

x = 360 - 2x

3x = 360

x = 120 degrees

Hope it helps!!