Question

The length of a slide at a water park is 50 feet long, top to bottom. What is the approximate measure of the angle formed by the top of the slide if the beginning of the slide is 45 from the ground? Round to the nearest degree.

Answer 1

The slide forms the hypotenuse of a right triangle. The cosine of the top angle = 45/50=0.9.
The angle is arccos(0.9)=26 degrees approx.