2

Part of 1948 Kurschak Competition

Problems(1)

convex polyhedron with no diagonals is a tetrahedron

Source: 1948 Hungary - Kürschák Competition p2

A convex polyhedron has no diagonals (every pair of vertices are connected by an edge). Prove that it is a tetrahedron.

geometry3D geometrypolyhedrontetrahedron