parislane parislane

25-03-2017
Mathematics

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a quadrilateral has angles that measure 63, 89, and 121. What is the measure of the fourth angle?

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amorrison21 amorrison21

25-03-2017

Uh.. Lemme see. Add up all the angle measures and then subtract them from 360. In this case, the answer is 87.

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Аноним Аноним

25-03-2017

360-all of those is 87 so 87 is the answer

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