Bonnesen's inequality

Bonnesen's inequality is a result in geometry that relates to the area of a convex body and the distances between points in that body. More specifically, it often pertains to the geometry of convex bodies in Euclidean spaces, particularly those shapes that can be compared based on their geometric properties. One of the well-known forms of Bonnesen's inequality deals with convex sets and relates the volume (or area) and the diameter of convex bodies.