document.write( "Question 549173: What is the length of the diagonal of a 10 cm by 15 cm rectangle? I have 5/13 cm but I was told it was wrong. Thank you in advance.. \n" ); document.write( "

Algebra.Com's Answer #357527 by mananth(16946) $\"\"$ $\"About$

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One leg 10 cm
\n" ); document.write( "Second leg 15 cm
\n" ); document.write( "Hypotenuse x cm
\n" ); document.write( "By Pythagoras theorem
\n" ); document.write( "Hypotenuse^2 = Leg1^2+leg2^2
\n" ); document.write( " $\"+%09x+%09%5E2%09=%0910%09%5E2%09%2B%0915%09%5E2\"$
\n" ); document.write( "x ^2 = 100 + 225
\n" ); document.write( "x ^2 = 325
\n" ); document.write( " $\"+sqrt%28x%5E2%29=%09%09sqrt%28%09325%09%29\"$
\n" ); document.write( " $\"x=%095sqrt%2813%29\"$
\n" ); document.write( " \n" ); document.write( "

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