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OpenStudy (anonymous):
What is the measurement of the fourth angle of a quadrilateral if the others measure 80 degrees, 120 degrees, and 65 degrees
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OpenStudy (goten77):
hmm well a 4 sided shape must mean that its total degrees equals 360 so with that we add the other 3 and take that away from 360 80 + 120 + 65 = 265 360-265 =95 which is the 4th angle
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