Guyyysss.. :) Help me solve this geometry problem

Answer:
The question asks arc length:
[tex] \frac{ \frac{ \frac{2\pi}{3} }{2\pi} }{1} = \frac{1}{3} [/tex]
Dividing by
[tex]2\pi[/tex]
Because 360°(by formula)
Therefore:
[tex] \frac{1}{3} \times \frac{2\pi \times 8}{1} = \frac{16\pi}{3 } = 5 \ \frac{\pi}{3} \\ so \: arc \: length \: = \frac{16\pi}{3} [/tex]
Good luck!
Intelligent Muslim,
From Uzbekistan.