document.write( "Question 303522: If a rectangle has a diagonal of 22 inches and a width of 18 inches, how long is the length? \n" ); document.write( "
Algebra.Com's Answer #217576 by london maths tutor(243)\"\" \"About 
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Let's length be L \r
\n" ); document.write( "\n" ); document.write( "\"22%5E2+=+18%5E2+%2B+L%5E2\"
\n" ); document.write( "\"+484+=+324+%2B+L%5E2+\"
\n" ); document.write( "\"+484+-324+=+L%5E2+\"
\n" ); document.write( "\"+L+=+sqrt%28160%29+\"
\n" ); document.write( "L = 12.65 inches
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