document.write( "Question 326259: How many Square feet are in a triangle that measures 42 Feet on all three sides? \n" ); document.write( "
Algebra.Com's Answer #233554 by mananth(16949)\"\" \"About 
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length of side = 42
\n" ); document.write( "Perimeter = 3*42= 126
\n" ); document.write( "\"area+=sqrt%28s%28s-a%29%28s-b%29%28s-c%29%29\"
\n" ); document.write( "a,b,c are the sides and s= 1/2 perimeter
\n" ); document.write( "area = \"sqrt%2863%2A%2863-42%29%2863-42%29%2863-42%29%29\"
\n" ); document.write( "area=\"sqrt%283%2A63%2A21%29\"
\n" ); document.write( "area=\"sqrt%2863%2A63%29\"
\n" ); document.write( "area = 63 sq.feet
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