document.write( "Question 951688: The ratio of the side lengths of a triangle is 4:7:9. The perimeter of the triangle is 120 feet. Find the side lengths. Then classify the triangle by its side lengths. \n" ); document.write( "
Algebra.Com's Answer #581230 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! The ratio of the side lengths of a triangle is 4:7:9. The perimeter of the triangle is 120 feet. Find the side lengths. Then classify the triangle by its side lengths. \n" ); document.write( "----- \n" ); document.write( "4:7:9 is the same as 4x:7x:9x \n" ); document.write( "----- \n" ); document.write( "Equation: \n" ); document.write( "4x + 7x + 9x = 120 \n" ); document.write( "20x = 120 \n" ); document.write( "x = 6 \n" ); document.write( "----- \n" ); document.write( "4x = 24 \n" ); document.write( "7x = 42 \n" ); document.write( "9x = 54 \n" ); document.write( "----------------- \n" ); document.write( "Classify:: \n" ); document.write( "54^2 > 24^2+42^2 \n" ); document.write( "Obtuse Triangle \n" ); document.write( "---------------------- \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "----------- \n" ); document.write( " |