document.write( "Question 315581: Find the area of an equilateral triangle (regular 3-gon) with the given measurement if the apothem is 6inches\r
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Algebra.Com's Answer #225854 by Fombitz(32388)\"\" \"About 
You can put this solution on YOUR website!
The apothem of an equilateral triangle is,
\n" ); document.write( "\"Ap=%28sqrt%283%29%2F6%29%2AS\"
\n" ); document.write( "where S is the length of the side.
\n" ); document.write( "The height of the triangle can be found using Pythagorean therorem,
\n" ); document.write( "\"%28S%2F2%29%5E2%2BH%5E2=S%5E2\"
\n" ); document.write( "\"S%5E2%2F4%2BH%5E2=S%5E2\"
\n" ); document.write( "\"H%5E2=%283%2F4%29S%5E2\"
\n" ); document.write( "\"H=%28sqrt%283%29%2F2%29%2AS\"
\n" ); document.write( "The area of the triangle is given by,
\n" ); document.write( "\"A=%281%2F2%29bh=%281%2F2%29S%28sqrt%283%29%2F2%29S=%28sqrt%283%29%2F4%29S%5E2\"
\n" ); document.write( "From the apothem formula,
\n" ); document.write( "\"Ap=%28sqrt%283%29%2F6%29%2AS\"
\n" ); document.write( "\"S=%286%2Fsqrt%283%29%29Ap\"
\n" ); document.write( "\"S%5E2=%2836%2F3%29A%5E2=12Ap%5E2\"
\n" ); document.write( "So then
\n" ); document.write( "\"A=%28sqrt%283%29%2F4%29%2812Ap%5E2%29\"
\n" ); document.write( "\"A=%28sqrt%283%29%2F4%29%2812%2A36%29\"
\n" ); document.write( "\"A=108sqrt%283%29\"
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