Question

In a circle with a radius of 12.6 ft, an arc is intercepted by a central angle of 2π/7 radians.

Answer 1

11.30
just convert it :)

Answer 2

Arc Length = Ф/2π * 2πr

l = 2π/14π * 2 * 3.14 * 12.6

l = 1/7 * 79.128

l = 11.30

In short, Your Answer would be: 11.30 Feet

Hope this helps!