document.write( "Question 25756: In a diagram of a large quadrilateral, AD is parallel to BC, BD is perpendicular to DC, and AE is perpendicular to BD.
\n" ); document.write( "AB is 41 cm, AD is 50 cm and BF is 9 cm.
\n" ); document.write( "What is the area of the small quadrilateral, DCEF?
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Algebra.Com's Answer #13874 by venugopalramana(3286)\"\" \"About 
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