What is the length of the indicated arc?
A pi
B (1/2) pi
C 3 pi
D 4 pi
E none of the above

Answer:
E. None of the above
Step-by-step explanation:
Arc length = radius • angle in radians
30 deg = 0.523599 rad
L = 12 • 0.523599 = 6.28319
2π = 6.28319
Answer is E. None of the above