document.write( "Question 258572: What is the length of a diagonal of the rectangle that is 5 inches wide and 12 inches long?\r \n" );
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document.write( "A) 7in \n" );
document.write( "B) 8.5in \n" );
document.write( "C) 13in \n" );
document.write( "D) 15in \n" );
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Algebra.Com's Answer #190380 by Nikki456(9) You can put this solution on YOUR website! You could use the Pythagorean theorem, which is .so suppose 5 is a and 12 is b. You plug in values. So you do . when you simplify that, you get 25+144=c^2. So you add and get 169=c^2. So when you do the square root of c^2, which is c, you have to do it to 169. The square root is 13. So c=13 in. \n" );
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