document.write( "Question 1014373: give me the area of a quadrilateral with the sides 34,50,,36,48 in sq.yards \n" ); document.write( "
Algebra.Com's Answer #630668 by addingup(3677)\"\" \"About 
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1713.94
\n" ); document.write( "Several ways to calculate but you do not specify.
\n" ); document.write( "Here is Bretschneider's formula:
\n" ); document.write( "Area= Sqrt[(s-a)(s-b)(s-c)(s-d)-abcbcos2theta/2]
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