document.write( "Question 286505: the width of rectangle is 5 feet and the diagonal is 9 feet. what is the area of the rectangle? \n" ); document.write( "
Algebra.Com's Answer #207802 by texttutoring(324)![]() ![]() You can put this solution on YOUR website! This would be easier to solve with a picture, but I don't know how to insert images here. If you want to see an image, send me a message.\r \n" ); document.write( "\n" ); document.write( "You can make a right triangle with the diagonal of the rectangle and its width.\r \n" ); document.write( "\n" ); document.write( "diagonal = 9 \n" ); document.write( "width = 5\r \n" ); document.write( "\n" ); document.write( "use Pythagorean theorem to solve for the unknown side, the length:\r \n" ); document.write( "\n" ); document.write( "9^2 = 5^2 + l^2 \n" ); document.write( "81-25 = l^2 \n" ); document.write( "l= Sqrt(56) \n" ); document.write( "l = 7.48\r \n" ); document.write( "\n" ); document.write( "The area is A=l*w\r \n" ); document.write( "\n" ); document.write( "A= 7.48 * 5 \n" ); document.write( "A= 37.4 \n" ); document.write( " |