47. A high fountain of water is located at the center of a circus lar pool as shown in Figure Pl.47. Not wishing to get his feet wet, a student walks around the pool and measures its circum- ference to be 15.0 m. Next, the student stands at the edge of the pool and uses a protractor to gauge the angle of eleva- tion at the bottom of the fountain to be 55.0'. How high is the fountain? 55.09 Figure P1.47