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OpenStudy (anonymous):
Can you help me? http://openstudy.com/updates/attachments/4dbdabe9b0ab8b0b4c81828b-angeldreamgurl-1304275984650-Classifythisquadrilateral.docx
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OpenStudy (anonymous):
I believe that's a trapezoid. P=10+30+50+50= 140 units. \[A=(1/2)h(b_{1}+b_{2})\] A=(1/2)(30)(10+50) A=900 units^2.
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