In circle P, BC=24. What is the length of arc AC?

For this case we have that by definition the arc length is given by: [tex]S = \frac {\alpha} {360} 2 \pi r[/tex]
Where,
Then, replacing values we have:
[tex]S = \frac {30} {360} 2 \pi (12)\\S = 6.28[/tex]
Answer:
The length of the AC arc is given by:
[tex]S = 6.28[/tex]