please do the math

Paul flies a drone in a circular path around an object that is 150 feet east and 170 feet south of his position. The drone's path takes it over a point that is 220 feet south and 200 feet east of him. Find an equation for the drone's path. (Assume Paul is located at the origin, with the horizontal axis running east-west and the vertical axis running north-south) The drone's path follows the equation