Show that the points A(-1, -2), B(4, 3), C(2, 5) and D(- 3, 0) in that order form a rectangle.

Show that the points A(7 , 3) , B (6 , 1) , C ( 8 , 2) and D ( 9 , 4) taken in that order are vertices of a parallelogram . (AS_(2))

Show that the points A(1,2,3) , B(4,0,4), C (-2,4,2) are collinear

Show that the points A(1,2,3),B(4,0,4),C(-2,4,2) are collinear

Show that the points A=(1,2,3),B=(7,0,1), C=(-2,3,4) are colinear.

The points A(2,-1,4),B(1,0,-1),C(1,2,3) and D(2,1,8) form a

Show that the four points (5,-1,1),(-1,-3,4) (1,-6,10) and (7,-4,7) taken in order form a rhombus.

The points (2, 5), (0, 3), (2, 1), (4, 3) taken in order, form

Show that the points (2, 3, 5), (-1, 5, -1) and (4, -3, 2) form a right angled isosceles triangle.