[" Prove that "(2,-2),(8,4),(5,7)" and "(-1,1)" are the angular points of a "],[" ratangle."]

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 (1,-1) , (-2,2) , (4,8) and (7,5) are the angular points of a 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 :- A (2, 1), B (5, 4), C (4, 7) and D(1, 4)are the angular points of a paralleogram. ABCD.

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

Prove that the points (2,-2),(-3,8) and (-1,4) are collinear.

Show that the points : P (1, 2), Q (5, 4), R (3, 8) and S (-1, 6) are the angular points of a square PQRS.

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

Prove that the points A (-2,-1) , B (5,4) C (6,7) and D (-1,2) are the vertices of a parallelogram.

Prove that: |(4,-8),(7,2)|=8|(5,4),(3,4)|