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

Prove that the points A(0,1), B(1,4), C(4,3) and D(3,0) are the vertices of a square ABCD.

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.

Show that the points (7,10), (-2, 5) and (3,-4) are the vertices of an isosceles right triangle

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

Show that the points A(1,2,3) ,B(-1,-2,-1) ,C(2,3,2) and D(4,7,6) are the vertices of a parallelogram ABCD but it is not a rectangle

Show that A(3,10) , B(6,5) , C(1,2) and D(-2, 7) are the vertices of a square

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

Show that the points (-4, -7), (-1, 2), (8, 5) and (5, -4) taken in order are the vertices of a rhombus. Find its area. (Hint : Area of rhombus = (1)/(2)xx product of its diagonals)

Show that the points A(1,3,2),B(-2,0,1) and C(4,6,3) are collinear.