Trying to compare

To get a good view of a person in front of a teller's window, it is determined that a surveillance camera at a bank should be directed at a point 20.2 ft to the right and 10.8 ft below the camera, as shown in 20.2 ft the figure to the right. At what angle of depression should the camera be directed ? 10.8 ft What is the angle of depression? A~ O (Do not round until the final answer. Then round to the nearest tenth as needed.)