Grade 7Algebra
An angle is half of its supplement.Find the measure of the angle.
An angle is half of its supplement.Find the measure of the angle.
1 Answer
Vikas TU
Let x = the angle
180 - x = its supplement since supplementary angles add up to 180 degrees.
180 - x = 1/2 x
2(180 - x) = 2(1/2) x
360 - 2x = x
360 = 3x
120 = x
The angle is 120 degrees, and its supplement is 60 degrees.
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