document.write( "Question 338817: Find the length of the diagonal of a rectangle whose sides are 16cm and 12cm \n" ); document.write( "
Algebra.Com's Answer #242871 by mananth(16946)\"\" \"About 
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The diagonal and the two sides of rectangle form a right triangle.
\n" ); document.write( "The diagonal is the hypotenuse H
\n" ); document.write( "16^2 +12^2 = H^2.
\n" ); document.write( "H^2 = 400
\n" ); document.write( "take square root
\n" ); document.write( "H = 20.
\n" ); document.write( "The diagonal = 20 cm.
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