Decomposition of the Tetrahedron into Four Congruent Symmetrical Parts
Initializing live version

Requires a Wolfram Notebook System
Interact on desktop, mobile and cloud with the free Wolfram Player or other Wolfram Language products.
This Demonstration gives a decomposition of the tetrahedron into four congruent symmetrical parts.
Contributed by: Izidor Hafner (March 2011)
Open content licensed under CC BY-NC-SA
Snapshots
Details
This decomposition is a puzzle by Binary Arts.