isRightTri Write the function isRightTri (p,q,r) that takes 3 points in 2-space, representing the three vertices of a triangle T and returns True if T is a right triangle and False otherwise. Each point is a tuple of 2 floats. You should call dist2 (the function you just defined) several times to solve this problem. Using python.
along with a good tester for this problem.