Answer:
4[tex]\pi[/tex]
Step-by-step explanation:[tex]\pi[/tex]
Arc Length formula : [tex](\frac{x}{360} )2\pi r=l[/tex]
1. [tex](\frac{60}{360} )2\pi (12)=l[/tex]
2. [tex](\frac{60}{360})24\pi[/tex]
I suggest you use a good calculator (one of those expensive ones or some online algebra calculator) if you don't want to deal with the decimals
3. 4[tex]\pi[/tex]
