In trapezoid ABCD, AB = 2, BC = 6, CD = 10, and DA = 6. Points F and G are the midpoints of line AD and line BC, respectively. Line FG intersects line BD and line AC, respectively, at H and J, and line AC intersects line BD at point E. Compute the area of triangle EHJ. I know the answer is 4radical5/3, but desperately need someone to explain how this answer is reached.