Watch a 33-minute video tutorial providing step-by-step solutions for a practice test on determining if three points form the vertices of a right triangle. Learn to apply the distance formula and Pythagorean Theorem to analyze the lengths of triangle sides. Master the technique of identifying the hypotenuse and verifying right triangles through mathematical proofs. Explore five detailed problem solutions, each demonstrating the process of calculating side lengths and applying the a^2 + b^2 = c^2 formula to confirm or refute right triangle configurations.