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OpenStudy (anonymous):
The measures of three angles of a quadrilateral are 80, 90, and 103 degrees. Find the measure of the fourth angle
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OpenStudy (anonymous):
the measure of the fourth angle is 87 degrees
OpenStudy (anonymous):
360 = 80 + 90 + 103 + x <---- solve for x
OpenStudy (anonymous):
80 + 90 + 103 + 87 = 360. which gives us the answer of 360.
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