A slide has an angle of elevation of 25°. It is 60 feet from the end of the slide to the stairway beneath the top of the slide. About how long is the slide?
cos 25=0.90631 cos 25=(the end of the slide to the stairway beneath the top of the slide)/( length of the slide) length of the slide=60/0.90631=66.2 the length of the slide = 66.2 feet
