[" c) Show that the points "(2,-2),(8,4),(5,7)" and "(-1,1)" are vertices "],[" of rectangle."]

Prove that the points (2,-2) ,(8,4), (5,7) and (-1,1) are the vertices of a rectangle , find the area of the rectangle.

Show that the points (1,-1),(-2,2),(4,8) and (7,5) are the vertices of a rectangle.

Show that the points (0,-1),(-2,3),(6,7) and (8,3) are vertices of a rectangle.

Show that the points (1,3),(2,6),(5,7) and (4,4) are the vertices of a rhombus.

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 P(0,2) Q(3,-1) R(-2,-6) and S(-5,-3) are the vertices of a rectangle.

Show that the points P(2,1), Q(-1,3) , R (-5,-3) and S (-2,-5) are the vertices of a rectangle.

Prove that the points P(-1,-2) Q (7,4) R (4,8) and S(-4,2) are the vertices of a rectangle.

Show that the points (-2,-1),(5,4),((6,7) and (-1,2) are the vertices of a parallelogram .Is the parallelogram a rectangle ?

Prove that the points A(0,-1),B(-2,3),C(6,7) and D(8,3) are the vertices of a rectangle ABCD .