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OpenStudy (anonymous):
A quadrilateral has three angles which measure 23.5 degrees, 99 degrees and 100.4 degrees. Tell what the measure of the forth angle is.
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OpenStudy (mrnood):
Th einternal angles of a quadrilateral add up to 360 deg so you can get the 4th by adding the other three together...
OpenStudy (anonymous):
Thank You!!!
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