PLEASE HELP 15 points!! Todd has created the following diagram to prove the Pythagorean theorem. He drew right ABC with leg lengths a and b and hypotenuse length c. Then he drew altitude CZ to the hypothenuse. He determines that c/a=a/x and c/b = b/y. Then he determines that cx=a2 and cy = b2. What is the next step in proving the theorem?
