Plot each point and form the triangle ABC. Verify that the triangle ABC is a right triangle. Find its area. A = ( - 1,12) B= (6,7) C = (1,0) . . . Choose the correct graph below that shows points A, B, C, and triangle ABC. O A. O B. O C. CD. To show that the triangle is a right triangle, show that the sum of the squares of the lengths of two of the sides (the legs) equals the square of the length of the third side (the hypotenuse). Sum of the squares of the lengths of the legs of the triangle =[ Square of length of the hypotenuse of the triangle =