SOLUTION: Use the given information to write an equation and solve the problem. Find the measure of an angle that is twice as large as its supplement. I know that an answer is that one ang

Question 100962This question is from textbook Geometry
: Use the given information to write an equation and solve the problem.
Find the measure of an angle that is twice as large as its supplement.
I know that an answer is that one angle is 30 and the other is 60 but i dont know how to put it into an equation. This question is from textbook Geometry

Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Find the measure of an angle that is twice as large as its supplement.
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Let the angle be "x".
The measure of its supplement is "180-x".
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EQUATION:
x = 2(180-x)
x = 360-2x
3x = 360
x = 120 (the angle)
180-x = 60 (the supplement)
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Cheers,
Stan H.
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