The Designers of a Water Park Are Creating a New

Multiple Choice

The designers of a water park are creating a new slide and have sketched some preliminary drawings.The length of the ladder is a = 24 feet,and its angle of elevation is 60º (see figure) .​ ​
Find the height of the slide.Round your answer to two decimal places.
​

A) About 21.78 ft
B) About 22.78 ft
C) About 23.78 ft
D) About 20.78 ft
E) About 24.78 ft