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OpenStudy (anonymous):
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OpenStudy (anonymous):
I might be able to help. What's up?
OpenStudy (anonymous):
OpenStudy (anonymous):
Well all quadrilateral shapes have a sum of 360 degrees, so\[100+81+71+x=360\] and angles that form straight lines have a sum of 180 so\[71+y=180\] you should be able to work it out from there.
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