Without using the distance formula, show that (- 2, - 1), (4, 0), (3, 3) and (- 3, 2) are the vertices of a parallelogram .

Without using distance formula, show that points (- 2,-1), (4, 0), (3, 3) and (-3, 2) are the vertices of a parallelogram.

By using the concept of slope, show that the points (-2,-1), (4,0), (3,3) and (-3,2) are the vertices of a parallelogram.

Show that the points (3, -1, -1), (5,-4, 0), (2, 3, -2) and ( 0, 6, -3) are the vertices of a parallelogram*.

Verify the following: (-1, 2, 1), (1, -2, 5), (4, -7, 8) and (2, -3, 4) are the vertices of a parallelogram.

If (1, 2), (4, y), (x, 6) and (3, 5) are the vertices of a parallelogram taken in order, find x and y.

If (1, 2) , (4, y) , (x, 6) and (3, 5) are the vertices of a parallelogram taken inorder, find x and y.

Show that the points (-1,2,1), (1,-2,5), (4,-7,8) and (2,-3,4) are vertices of a parallelogram.

Without using the pythagorus, show that the points (4, 4), (3, 5) and (-1, -1) are the vertices of a right angled triangle.

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

Without using the Pythagoras theorem, show that the points (4, 4), (3, 5) and (-1,1) are the vertices of a right angled triangle.