Show that the points A(2,-2), B(8, 4), C(5,7) and D(-1, 1) are the angular points of a rectangle.

Show that the points A(2, 1), B(5, 2), C(6, 4) and D(3, 3) are the angular points of a parallelogram. Is this figure a rectangle?

Show that the points (-4, -1), (-2, -4), (4, 0) and (2, 3) are the vertices points of a rectangle.

Show that the points A(-1, 1), B(5, 7) and C(8, 10) are collinear.

Show that the points A(2, -1), B(3, 4), C(-2, 3) and D(-3, -2) are the vertices of a rhombus.

Show that the points A (1, 0), B(5, 3), C (2, 7) and D(-2, 4) are the vertices of a rhombus.

Show that the points A(1, 0), B (5, 3), C (2, 7) and D (-2, 4) are the vertices of a rhombus.

Show that the points A(1,2),B(4,3),C(1,0) and D(-2,-1) are the vertices of a parallelogram.

Show that the points (3, 1, 4), (6, 4, 4), (8, 2, 4) and (5, -1, 4) are the vertices of a rectangle. [Hint : Opposite sides and diagonals of rectangle are equal.]

Show that the points A(1,-2),B(3,6),C(5,10) and D(3,2) are the vertices of a parallelogram.

Show that the points A(1,0),B(5,3),C(2,7) and D(-2,4) are the vertices of a parallelogram.