If the points $(P,Q)$, $(M,N)$ and $(P-M,Q-N)$ are collinear. Then show that $QM=PN$.
Basic Points and formulae:
- Distance between two points = $\sqrt{(x_2-x_1)^2+(y_2-y_2)^2} $
Where, $(x_1,y_1)$ and $(x_2,y_2)$ are the coordinates of the two points.
- The collinear points lie on the same line.