1. A 100 ft. building casts a 300 ft. shadow from the sun. What is the angle of depression? Round to the nearest tenth of a degree. *Hint: Where do shadows fall?* 2. An observer in the top of a lighthouse determines that the angles of depression to two sailboats directly in line with the lighthouse are 3.5º and 5.75º. If the observer is 125 feet above sea level, find the distance between the boats. Round to the nearest tenth.