Without using pythagoras theorem, show that the points `A(-1,3) ,B(0,5) and C(3,1)` are the vertices of a right angled 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 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 (3, 4), (8, -6) and (13, 9) are the vertices of a right angled triangle.

The points A(x,y), B(y, z) and C(z,x) represents the vertices of a right angled triangle, if

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

Without using Pythagoras theorem prove that A(12, 8), B(-2, 6) and C(6, 0) are the verticies of right angled triangle.

Are the points A(3, 6, 9), Q(10, 20, 30) and C(25, -41, 5), the vertices of a right angled triangle ?

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

Points A(3,1), B(12, -2) and C(0,2) cannot be the vertices of a triangles.

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