document.write( "Question 500952: The base of a triangle is 5 inches less than the altitude. The area of the triangle is 42 square inches. Find the base in inches. \n" ); document.write( "
Algebra.Com's Answer #338353 by mananth(16946) You can put this solution on YOUR website! altitude be x \n" ); document.write( "base = x-5 \n" ); document.write( "area = 1/2 * base * altitude \n" ); document.write( "42=1/2*x(x-5) \n" ); document.write( "2*42=x(x-5) \n" ); document.write( "84=x^2-5x \n" ); document.write( "x^2-5x-84=0 \n" ); document.write( "x^2-12x+7x-84=0 \n" ); document.write( "x(x-12)+7(x-12)=0 \n" ); document.write( "(x-12)(x+7)=0 \n" ); document.write( "x= 12 in the altitude \n" ); document.write( "base = 5 in \n" ); document.write( " |