Show that the points (1,3,2),(3,0,8) and (9,-2,5) are the vertices of an isosceles right angled triangle.

Show that the points (2,4,3),(4,1,9) and (10,-1,6) are the vertices of an isosceles right angled triangle.

Show that the points : A (0,1,2),B(2,-1,3) and C (1,-3,1) are vertices of an isosceles right angle 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.

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

Prove that the points (0, 7,-10), (1, 6,-6) and (4,9, - 6) are the vertices of an isosceles triangle.

The points (3,2),(0,5),(-3,2) and (0,-1) are vertices of:

Show that the points (3, 4), (8, -6) and (13, 9) are the vertices of a right angled triangle.

Prove that the points A (1,2,3), B(2,3,1) and C(3,1,2) are the vertices of an equilateral triangle.

Show that (8, 2), (5, - 3) and (0,0) are the vertices of an isosceles triangle.

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