Question

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 1

E. None of the above

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