The curvature of a circle is inversely proportional to its radius. What is the exact circumference of a circle with one-third the curvature of a circle of radius 1?
If a circle has a radius of 1, its curvature is inversely proportional to this = 1
A circle with a curvature of 1/3 of this must have a radius of 3
So....the circumference of this circle = 2 pi * radius = 2 pi * 3 = 6pi ≈ 18.85 units