in figure 9.33 ab BC and BDE are two equilateral Triangles such that D is the midpoint of BC if AE intersect BC at F show that area of BD is equal to 1 by 4 area of a triangle ABC and area of BD is equal to 1 by 2 area of BA area of ABC is equal to 2 area of b e c error of BF3 is equal to area of a FD area of bi f is equals to 2 area of FED and area of FED is equal to 1 by 8 area of AFC​