document.write( "Question 204327: Given that the area of an equilateral triangle is 153 cm^2, find its perimeter \n" ); document.write( "
Algebra.Com's Answer #154270 by lazi(15)\"\" \"About 
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A = [(a^2)/4]sqrt(3)\r
\n" ); document.write( "\n" ); document.write( "153 = [(a^2)/4]sqrt(3)
\n" ); document.write( "153/sqrt(3) = (a^2)/4
\n" ); document.write( "4[153/sqrt(3)] = a^2
\n" ); document.write( "sqrt{4[153/sqrt(3)]}=a\r
\n" ); document.write( "\n" ); document.write( "Perimeter is just three sides adding together; and since all the sides are the same we can take one side times 3\r
\n" ); document.write( "\n" ); document.write( "3sqrt{4[153/sqrt(3)]} = P = 56.392 cm\r
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