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28-03-2017
Mathematics

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A quadrilateral has angles that measure 68°, 81°, and 90°. What is the measure of the fourth angle?

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Аноним Аноним

28-03-2017

121, you find the angle by adding the other three angles then subtracting the result from that, from 360, 68+81+90=239 360-239=121.
~Karma

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