## Detailed description

Triangle ABC. D the midpoint of BC. Points A(x1, y1), B(x2,y2) and C(x3,y3). Point G divides AD in the ratio 2:1.

Triangle ABC. D the midpoint of BC. Points A(x1, y1), B(x2,y2) and C(x3,y3). Point G divides AD in the ratio 2:1.