Answer:
2nd option
Step-by-step explanation:
the length of the arc is calculated as
arc = circumference × fraction of circle
= 2πr × [tex]\frac{120}{360}[/tex] ( r is the radius )
= 2π × 10 × [tex]\frac{1}{3}[/tex]
= 20π × [tex]\frac{1}{3}[/tex]
= [tex]\frac{20\pi }{3}[/tex] in
