The document discusses two geometry problems. Problem 4 asks to find the height of a hospital given the angles of elevation and depression from a window in a nearby building 38 meters away. It is solved to be 124 meters tall. Problem 11 asks for the angle of depression needed for a video camera mounted 5.93 feet up on a wall to view a teller window 12.02 feet away, which is found to be 26 degrees.