document.write( "Question 825253: The legs of a right triangle have lengths (in units) x+2 and x+6. The hypotenuse has lengths (in units) 2x. Find the perimeter of the triangle. \n" ); document.write( "
Algebra.Com's Answer #497158 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! The legs of a right triangle have lengths (in units) x+2 and x+6. The hypotenuse has lengths (in units) 2x. Find the perimeter of the triangle. \n" ); document.write( "----- \n" ); document.write( "Use Pythagoras to get: \n" ); document.write( "(2x)^2 = (x+2)^2 + (x+6)^2 \n" ); document.write( "4x^2 = x^2 +4x+4 + x^2 + 12x + 36 \n" ); document.write( "----------- \n" ); document.write( "2x^2 = 16x+40 \n" ); document.write( "---- \n" ); document.write( "x^2 - 8x - 20 = 0 \n" ); document.write( "------ \n" ); document.write( "Factor: \n" ); document.write( "(x-10)(x+2) = 0 \n" ); document.write( "------ \n" ); document.write( "Positive solution: \n" ); document.write( "x = 10 \n" ); document.write( "====== \n" ); document.write( "hypotenuse = 2x = 20 \n" ); document.write( "leg = x+2 = 12 \n" ); document.write( "leg = x+6 = 16 \n" ); document.write( "------------------ \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "================ \n" ); document.write( " |