Prove that the points (-2, 1), (2, -2) and (5, 2) are the vertices of a right triangle. , 11 | Two dimensional...

Prove that the points (0,0),(5,5) and (-5,5) are the vertices of a right isosceles triangle.

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

Prove that the points (2,-2), (-2, 1) and (5, 2) are the vertices of a right angled triangle. Also find the area of this triangle.

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

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

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

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

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