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Suppose the angle is x degrees. Then its supplement is 180-x degrees.

But you also know that the supplement is 8x

so 8x = 180 - x deg

Add x to both sides: 9x = 180 deg

Divide both sides by 9: x = 20 deg

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โˆ™ 2009-10-24 10:52:59
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Q: Find The measure of an angle whose supplement measures eight times its measure?
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