Are the points A(3, 2), B(-2, -3) and C(-2, -3) the three vertices of a triangle? If yes then what is the triangle?

The points A(3,1) , B (12,-2) and C(0,2) cannot be vertices of a triangle.

If A(-2,1),B(2,3) and C(-2,-4) be the vertices of a triangle ABC , show that tan B=(2)/(3)

Without using Pythagoras theorem,show that the points A(0,4),B(1,2) and C(3,3) are the vertices of a right angled triangle.

The points (-2,5),(3,-4) and (7,10) are the vertices of the triangle then triangle is:

Prove that the points (5,3,2),(3,2,5) and (2,5,3) are the vertices of an equilateral triangle.

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

Show that the points A(1,1,1) ,B(1,2,3) and C(2,-1,1) are vertices of an isosceles triangle