For this problem, we are given a circle, its radius, and an arc of 120º. We need to calculate the length of the arc.
We need to use the following expression:
[tex]Arc=\frac{2\pi r\theta}{360}[/tex]
Where theta is the angle. We have:
[tex]Arc=\frac{2\pi\cdot8\cdot120}{360}=16.755\text{ cm}[/tex]
The length of the arc is approximately 16.755 cm.
