the edges are those of a regular octahedron. French See File:3 nested squares with edges of handmade octahedron FR.svg author name string: Arthur Baelde
publish it under the following license: English Schlegel diagram of a octahedron Wikimedia username: Opensofias author name string: Opensofias URL: https://commons
you or your use. https://creativecommons.org/licenses/by/4.0CC BY 4.0 Creative Commons Attribution 4.0 truetrue English Zeroth stellation of octahedron