annahmichelesuele annahmichelesuele

25-09-2017
Mathematics

contestada

A quadrilateral has angles that measure 56°, 97°, and 136°. What is the measure of the fourth angle?

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saturns saturns

25-09-2017

the quadrilateral adds up to 360 degrees.

the 3 angles given add up to 289 degrees.

subtract the 3 given from 360

360 - 289

71 degrees.

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