Question 897667
Draw equilateral triangle.  Label left and right sides, x; draw altitude and label it, y.  label half of a bottom side as x/2.    The x and y are related by Pythagorean Theorem, as {{{y^2+(x/2)^2=x^2}}} and area is {{{xy/2=192}}}.


Solve the system for x, and then find 3x.  You should have a value.  The question you have means to report this value of 3x and therefore this value will not have operation symbols.  You still need to use some operation symbols in the problem solving steps.




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Not show the steps here, but I found {{{x=4sqrt(2)}}}.