Victory Step SAT Geometry Problem #1

As hard as the problem looks, the solution is quite simple!
In order to find the area of the shaded region, we need to find the area of the whole triangle, and then subtract the area of the smaller non-shaded region.

So what does our formula look like:
Area of shaded region = Area of triangle ABC - Area of triangle EFD
Note: Area of triangle EFD = (1/4) Area of traingle ABC.