Chapter Notes: Section & Midpoint Formula | Equation of a Line

Recap of Section & Midpoint Formula and Equation of a Line. Note: Coordinates of the centroid of a triangle with vertices A(x1,y1), B(x2,y2), C(x3,y3) is G( x1+x2+x3 / 3 , y1+y2+y3 / 3), average of the x and y coordinates of the vertices. The centroid divides each median in the ratio 2:1.