Prove that by joining the points (2,1),(3,4),(-3,6) we get a right triangle.

Prove that the points '(1,3),(2,5)' '(3,7)' are on the same line.

Without using the pythagoras theorem show that the points (4,4),(3,5) and (-1, -1) are the vertices of a right angled triangle.

Without using the pythagoras theorem, show that the points (4,4),(3,5) and (-1, -1) are the vertices of a right angled triangle

The point which divides the line joining the points (1,3,4) and (4,3,1) internally in the ratio 2:1 , is

Find the coordinate of the points which divides the line segment joining the points (-2,3,5) and (1,-4,6) in the ration 2:3 internally.

Find the co-ordinate of the point which divides the line segment joining the points (-2,3,5) and (1,-4,6) in the ratio 2:3 externally.

Prove that the points (2,4,4),(1,5,4),(2,6,2)and (0,6,4) are coplanar.

Find the co-ordinates of the point which divides the line joining the points (-3,4) and (-1,-2) in the ratio l : m