Solution
Given the radius of a circle to be 10 cm
Also, given its central angle to be 2π/5 radians
The length of arc s
[tex]\begin{gathered} s=r\theta \\ \\ \Rightarrow s=10\times\frac{2\pi}{5}=4\pi\text{ cm} \end{gathered}[/tex]
The approximate arc length is 12.57 cm (2 decimal places)
