# Turn Four Cubes into a Truncated Octahedron

If you cut a cube just right, you will reveal a hexagonal cross-section. If you rearrange the pieces from four such dissections, you can assemble a truncated octahedron.

## Materials

- Re-stickable (not permanent) glue stick

- Card stock

## Steps

- Build four copies (eight pieces) of the project Hexagonal Cross-section of a Cube.

- Apply re-stickable glue stick (if you have some handy) to the surfaces to help the model stick together in a non-permanent way.

- Assemble the pieces so that all the vertices that used to be corners of the square meet in the middle of the truncated octahedron.

## Notes

- While any polygon can be dissected into pieces that can be rearranged into any other polygon with a finite number of cuts, the same is not true with polyhedra. For example, it is impossible to dissect a tetrahedron into a cube using a finite number of cuts.

## References