SECTION FORMULAE Formula for Internal Division: The coordinates of the point which divides the line segment joining the points (x1, y1) and (x2, y2) internally in the ration m : n are given by , . If P is the mid-point of AB, then it divides AB in the ratio 1:1, so its coordinates are . The Read more about Cartesian co-ordinate system in plane – II[…]