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29-08-2018
Mathematics

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The measure of the supplement of an angle is 20° more than three times the measure of the original angle. find the measures of the angles.

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29-08-2018

If the original angle is x degrees then its supplement is 180 - x degrees.

we have the equation:-

180 - x = 3x + 20

160 = 4x

x = 40

The original angle is 40 degrees and its supplement is 140 degrees

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