Can one cover a cube by three paper triangles (without overlapping)?
Problem
Source: Tournament of Towns Spring 2003 - Senior A-Level - Problem 3
Tags: geometry, 3D geometry, combinatorics unsolved, combinatorics
Source: Tournament of Towns Spring 2003 - Senior A-Level - Problem 3
Tags: geometry, 3D geometry, combinatorics unsolved, combinatorics
Can one cover a cube by three paper triangles (without overlapping)?