Master how to determine the arc length with given theta and the radius

The video tutorial explains how to determine the arc length using the formula s = r * Theta, where s is the arc length, r is the radius, and Theta is the angle in radians. It emphasizes the importance of using radians for the angle. The tutorial provides two examples: one with the angle already in radians and another requiring conversion from degrees to radians. The calculations involve simplifying fractions and multiplying to find the arc length, with results expressed in terms of Pi.

What is the value of the angle in radians when it is given as 120 degrees?

Calculate the arc length for a radius of 9 feet and an angle of 2π/3 radians.