document.write( "Question 99803: A triangle has an area of 72in squared. It has a height of 9 inches, what is the base? \n" ); document.write( "
Algebra.Com's Answer #72657 by doukungfoo(195)\"\" \"About 
You can put this solution on YOUR website!
ok the area of a triangle is equal to 1/2 times base times height
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\n" ); document.write( "or
\n" ); document.write( "\"A=%28bh%29%2F2\"
\n" ); document.write( "Given: area is 72 in squared
\n" ); document.write( "Given: height is 9 inches
\n" ); document.write( "Now plug in the given information and solve for base
\n" ); document.write( "\"A=%28bh%29%2F2\"
\n" ); document.write( "\"72=%289b%29%2F2\"
\n" ); document.write( "multiply both sides of the equal sign by 2
\n" ); document.write( "\"%2872%29%282%29=%28%289b%29%2F2%29%282%29\"
\n" ); document.write( "\"144=9b\"
\n" ); document.write( "now divide both sides of the eual sign by 9
\n" ); document.write( "\"144%2F9=%289b%29%2F9\"
\n" ); document.write( "\"16=b\"
\n" ); document.write( "So the base is 16 inches
\n" ); document.write( "Check answer using the original equation
\n" ); document.write( "\"A=%28bh%29%2F2\"
\n" ); document.write( "\"72=%28%2816%29%289%29%29%2F2\"
\n" ); document.write( "\"72=%28144%29%2F2\"
\n" ); document.write( "\"72=72\"
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