You can
put this solution on YOUR website!When you see the term "equilateral triangle" it should immediately register that all three sides are equal!
And, that the altitude (h) bisects one side in half.
Since x = 6 feet (given in problem)
Draw the diagram above...
Now, you can apply Pythagorean's theorem:
h^2 + 3^2 = 6^2
h^2 + 9 = 36
h^2 = 27
h = sqrt(27)
h = sqrt(3*3*3)
h = 3sqrt(3)
