document.write( "Question 1115409: find the area of an equilateral triangle with a perimeter of 54 cm.
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\n" ); document.write( "can you help me please?
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Algebra.Com's Answer #730268 by math_helper(2461)\"\" \"About 
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The area of an equilateral triangle is related to its side-length, s, by: \"+A+=++%28sqrt%283%29%2F4%29%2As%5E2+\"\r
\n" ); document.write( "\n" ); document.write( "The value of s = 54cm/3 = 18cm. Plug in 18 to find \"+A+=+81%2Asqrt%283%29+cm%5E2+\" or about \"140.296cm%5E2\"\r
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\n" ); document.write( "EDITED to actually square s, sorry about that.
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