SOLUTION: Can you show me the equation to the solution of this problem: An equilateral triangle with an area of 12 has what perimeter? Thanks a lot.

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Question 628771: Can you show me the equation to the solution of this problem:
An equilateral triangle with an area of 12 has what perimeter?
Thanks a lot.
Answer by meetkisai(17) About Me  (Show Source):
You can put this solution on YOUR website!
area of eq triangle = %28sqrt%283%29%2Aa%5E2%29%2F4
12+=+%28sqrt%283%29%2Aa%5E2%29%2F4
a%5E2+=+12+%2A+4%2Fsqrt%283%29
+a+=+4+3%5E%281%2F4%29
perimeter = 3.a
=> 12.3%5E%281%2F4%29