solution, mathématiques, solide régulier
Il y a en 5 ainsi que le rapelle la page Wikipédia Solide de Platon dont les illustrations qui suvient sont extraites.
<table><tr> <td width="120"><img alt="Tétraèdre" src="https://upload.wikimedia.org/wikipedia/commons/7/70/Tetrahedron.gif" width="120" height="120" /></td> <td width="120"><img alt="Cube" src="https://upload.wikimedia.org/wikipedia/commons/4/48/Hexahedron.gif" width="120" height="120" /></td> <td width="120"><img alt="Octaèdre" src="https://upload.wikimedia.org/wikipedia/commons/1/14/Octahedron.gif" width="120" height="120" /></td> <td width="120"><img alt="Dodécaèdre" src="https://upload.wikimedia.org/wikipedia/commons/7/73/Dodecahedron.gif" width="120" height="120" /></td> <td width="120"><img alt="Icosaèdre" src="https://upload.wikimedia.org/wikipedia/commons/e/e2/Icosahedron.gif" width="120" height="120" /></td> </tr></table>
