Answer:
D
Step-by-step explanation:
The arc length is calculated as
arc = circumference of circle × fraction of circle
= 2πr × [tex]\frac{\frac{\pi }{6} }{2\pi }[/tex] ( cancel the 2π )
= 12 × [tex]\frac{\pi }{6}[/tex] = 2π ≈ 6.3 ( to the nearest tenth ) → D
