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Mathematics 13 Online
OpenStudy (anonymous):

The measures of three angles of a quadrilateral are 80, 90, and 103 degrees. Find the measure of the fourth angle

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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