You can put this solution on YOUR website! Hi, there --
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If two angles are supplementary, the sum of their angle measures is 180 degrees. in other words,
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[53 degrees] + [the measure of the other angle] = [180 degrees]
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See if you can figure it out from here. Email me or repost, if you still have questions or want to check your answer.
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Best,
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Ms.Figgy
math.in.the.vortex@gmail.com