document.write( "Question 263227: the height of a triangle is twice the base. the area is 9 square inches. find the base. \n" ); document.write( "
Algebra.Com's Answer #193983 by unlockmath(1688)![]() ![]() You can put this solution on YOUR website! Hello, \n" ); document.write( "Let's establish x to represent the base. We know the formula for the area of a triangle is: A=1/2BH So now let's plug in the values. \n" ); document.write( "9=1/2(x)(2x) Simplify this to be: \n" ); document.write( "9=1/2(2x^2) The 1/2 and 2 turn to 1 so we have: \n" ); document.write( "9=x^2 Square root both sides to get: \n" ); document.write( "x=plus and minus 3 \n" ); document.write( "Minus 3 doesn't work so it's 3 inches for the base. \n" ); document.write( "Got it? \n" ); document.write( "RJ \n" ); document.write( "Check out a book I wrote at: \n" ); document.write( "www.math-unlock.com \n" ); document.write( " |