document.write( "Question 657339: What is the length of the hypotenuse of whose legs are 5 feet and 12 feet \n" ); document.write( "
Algebra.Com's Answer #409823 by swincher4391(1107)\"\" \"About 
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You have a right triangle, therefore you can use the Pythagorean Theorem.\r
\n" ); document.write( "\n" ); document.write( "This states that for legs a,b and hypotenuse c, you have:\r
\n" ); document.write( "\n" ); document.write( "\"a%5E2+%2B+b%5E2+=+c%5E2\"\r
\n" ); document.write( "\n" ); document.write( "Using this we have\r
\n" ); document.write( "\n" ); document.write( "\"%285%29%5E2+%2B+%2812%29%5E2+=+c%5E2\"
\n" ); document.write( "\"25+%2B+144+=+c%5E2\"
\n" ); document.write( "\"169+=+c%5E2\"
\n" ); document.write( "\"+c+=+13+\" or \"c+=+-13\"
\n" ); document.write( "But since we're talking about a length, c can only be positive.\r
\n" ); document.write( "\n" ); document.write( "Thus c =13.
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