![](http://polyplane.org/wp-content/uploads/sites/8/2023/04/20230427_184827-scaled-e1682789243319-288x300.jpg)
Untitled, brass wire and solder
[8 F, 12 E, 6 V] The regular octahedron is one of the five Platonic solids known since antiquity – shapes with no indentations having all identical angles and edge lengths. These solids show up in myriad places: as dice, in architecture, and in nature as the shapes of crystals, to name a few.