document.write( "Question 326604: a right triangle has a leg that is 5 in. long and a hypotenuse that is 13 in long. How do you find the length of the 3rd side
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Algebra.Com's Answer #233846 by nyc_function(2741)\"\" \"About 
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Use the Pythagorean Theorem.\r
\n" ); document.write( "\n" ); document.write( "Let s = third side length\r
\n" ); document.write( "\n" ); document.write( "5^2 + s^2 = 13^2\r
\n" ); document.write( "\n" ); document.write( "25 + s^2 = 169\r
\n" ); document.write( "\n" ); document.write( "s^2 = 169 - 25\r
\n" ); document.write( "\n" ); document.write( "s^2 = 144\r
\n" ); document.write( "\n" ); document.write( "sqrt[s^2] = sqrt[144]\r
\n" ); document.write( "\n" ); document.write( "s = 12
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