MathDB
51 circles of diameter 1 in 5x8 - 1993 Cono Sur Shortlist G4

Source:

October 23, 2021
circlesgeometryrectangle

Problem Statement

Is it possible to locate in a rectangle of 55 cm by 8 8 cm, 5151 circles of diameter 1 1 cm, so that they don't overlap? Could it be possible for more than 4040 circles ?