In gym class you run 22m horizontal then climb a rope vertically for 4.8m. what is the direction angle of your total displacement, as measured from the horizontal?

The answer is: 12.30 degrees.

The explanation for this exercise is shown below:

1. You can make a right triangle as you can see in the picture attached, where is the angle asked, the opposite side is 4.8 meters and the adjacent side is 22 meters.

2. Therefore, you can use to calculate the angle, as following:

does anyone know or what?