MathDB
exists tetrahedron which can be partitioned into 8 congruent tetrahedra

Source: Czech And Slovak Mathematical Olympiad, Round III, Category A 1993 p6

February 20, 2020
combinatorial geometry3D geometrytetrahedronsimilarcongruent

Problem Statement

Show that there exists a tetrahedron which can be partitioned into eight congruent tetrahedra, each of which is similar to the original one.