document.write( "Question 496771: A triangle has a vertical height 2cm longer than its base length. Its area is 20cm^2. What are the dimensions of the triangle? \n" ); document.write( "
Algebra.Com's Answer #336552 by cleomenius(959)![]() ![]() You can put this solution on YOUR website! A = 1/2 b*h \n" ); document.write( "20 =1/2 b* h \n" ); document.write( "40 = b*h \n" ); document.write( "40 = (x + 2) * x \n" ); document.write( "40 = x^2 + 2x\r \n" ); document.write( "\n" ); document.write( "x^2 + 2x - 40 = 0 \n" ); document.write( "Next, use the quadratic formula. \n" ); document.write( "7.4 is the height. \n" ); document.write( "5.4 is the base. \n" ); document.write( "7.4 * 5.4 = 39.96 approx 40; 40 / 2 = 20. \n" ); document.write( "This does check. \n" ); document.write( "Cleomenius. \n" ); document.write( " |