Question 1193778
DB=AB=6
so all sides are 6.
EB=3, AB=6. AEB is a 30-60-90 right triangle with the diagonal the longer of the two lengths at 3 sqrt(3).
So the length of the diagonal is double that or 6 sqrt (3).
Because EB is 1/2 of AB in a right triangle, this is a 30-60-90 rt triangle.