Using the picture, what DEGREE MEASURE does a + b equal?

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1 Answer
Joe B.
Mar 6, 2018

∠a+∠b=180 degrees

Explanation:

Because the figure is a closed, 4-sided figure (a quadrilateral), the interior angles must add-up to 360 degrees.

a+b+a+b=360

2a+2b=360

a+b=180 degrees

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