Prove that the points `(4, 8), (0, 2) (3, 0) and (7, 6)` are the vertices of a rectangle.

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

Prove that the points (4, 3), (6, 4), (5, 6) and (3, 5) are the vertices of a square.

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

Prove that the point (4, 3), (6, 4), (5, 6) and (3, 5) asre the vertices of a square.

Prove that the points P (0,-4), Q(6,2) R(3,5) and S (-3, -1) are the vertices of a rectangularj PQRS.

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

Prove that the points (3, 2), (6, 3), (7, 6) and (4, 5) are the vertices of a parallelogram. Is it a rectangle?

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

Prove that the points (3, 0), (6, 4) and (-1, 3) are the vertices of a right angled isosceles triangle.

Prove that the points (4,\ 5),\ (7,\ 6),\ (6,\ 3),\ (3,\ 2) are the vertices of a parallelogram. Is it a rectangle.