loran55667 loran55667

26-05-2017
Mathematics

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Two angles of a quadrilateral each measure 70°. A third angle of the quadrilateral measures 115°. What is the measure of the fourth angle of the quadrilateral?

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Яɒwɿ Яɒwɿ

26-05-2017

Quadrilateral's angles add up to 360 degree
So .....
70+70+115+x=360
255+x=360
x=360-255
x=105 degrees

Hope I didn't mess up for your sake.

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