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OpenStudy (anonymous):
6 angles of a heptagon measure 115°, 98°, 124°, 138°, 142°, 159°, find the measure of the seventh angle.
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OpenStudy (anonymous):
The sum of the internal angles of a polygon is \(180(n-2)\), where n is the number of sides. If x is the 7th' side, then solve \(x+115+98+124+138+142+150=180(7-2)\)
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