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ABCD is quadrilateral, with AB parallel ...

ABCD is quadrilateral, with AB parallel to CD (see figure). Point E is between C and D such that AE represent the height of ABCD, and E is the midpoint of CD. If AB is 4 inches long, AE is 5 inches long, and the area of trianlge AED is 12.5 square inches, what is the area of ABCD? (Note : figure not drawn to scale).

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The correct Answer is:
`35 "in"^2`
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