Question 628771
area of eq triangle = {{{(sqrt(3)*a^2)/4}}}
{{{12 = (sqrt(3)*a^2)/4}}}
{{{a^2 = 12 * 4/sqrt(3)}}}

{{{ a = 4 3^(1/4)}}}

perimeter = 3.a
=> {{{12.3^(1/4)}}}