Find the length of a arc given the radius of a circle

The video tutorial explains how to calculate the length of an arc in a circle. It begins by introducing the problem and the formula needed to find the arc length. The teacher then explains how to determine the radius from the given diameter and how to calculate the necessary angles. Finally, the tutorial demonstrates the complete calculation process, resulting in the arc length of 6.28 feet.

How can you find the unknown angle in a triangle if you know the other two angles?

What is the final calculated length of the arc in feet?