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Mathematics 10 Online
OpenStudy (anonymous):

Geometry help

OpenStudy (anonymous):

OpenStudy (anonymous):

there are 180 degrees in a straight line, right? so 111 + y = 180 there are 360 degrees in a quadrilateral, so x + y + 121 + 66 = 360 (just plug in the y after you get it from the first equation)

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