document.write( "Question 825398: A rectangular picture frame has a length of x cm. and a width of 30 cm. If the diagonal is 50 cm, what is the length?
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Algebra.Com's Answer #497248 by TimothyLamb(4379)\"\" \"About 
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\n" ); document.write( "d = sqrt( LL + ww )
\n" ); document.write( "dd = LL + ww
\n" ); document.write( "LL = dd - ww
\n" ); document.write( "L = sqrt( dd - ww )
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\n" ); document.write( "x = sqrt( 50*50 - 30*30 )
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\n" ); document.write( "answer:
\n" ); document.write( "x = length = 40 cm
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