When the central angle is expressed in radians:
S = r * theta
Where S is the arc length, r is the radius of the circle, and theta is the central angle in radians.
Therefore the arc length in this case is:
37π11
Directly multiply.
First edit:
Whoops I did not see that take pi = 3.1416.
Therefore the answer should be 37/11×3.1416≈10.57