CGAL 4.12.1 - 2D and 3D Linear Geometry Kernel
Kernel::ComputeSquaredLengthDividedByPiSquare_3 Concept Reference

## Definition

Refines:
AdaptableFunctor (with one argument)
CGAL::Circle_3<Kernel>
returns the squared length of c, divided by $$\pi^2$$.