In triangle ABC, D, BE and CF are medians and G is the centroid of the triangle. If the area of the triangle DGC is 20 cm2, then the area of triangle AGF + the area of triangle BGF is equal to:

30 cm2 20 cm2 25 cm2 40 cm2

40 cm2

We know that, Area of triangles AGF, AGE, DGB, DGC, EGC and FGB are equal.  ∆ DGC = 20 cm2 ∆ AGF = ∆ BGF = 20 cm2 ∆ AGF + ∆ BGF = 20 + 20 = 40 cm2