document.write( "Question 698507: The diagonal of a rectangle is 13 cm. How long is its width if its length is 10 cm? \n" ); document.write( "
Algebra.Com's Answer #430738 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! The diagonal of a rectangle is 13 cm. How long \n" ); document.write( "is its width if its length is 10 cm? \n" ); document.write( "--------------------- \n" ); document.write( "Draw the picture: \n" ); document.write( "You have a right triangle with hypotenuse = 13 and one side is 10 \n" ); document.write( "===== \n" ); document.write( "Equation: \n" ); document.write( "Let the length be \"x\": \n" ); document.write( "13^2 = 10^2 + x^2 \n" ); document.write( "----- \n" ); document.write( "169 = 100 + x^2 \n" ); document.write( "------ \n" ); document.write( "x^2 = 69 \n" ); document.write( "---- \n" ); document.write( "length = sqrt(69) \n" ); document.write( "======================= \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "======================\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |