The normal decagon could be the Petrie polygon of your common dodecahedron and icosahedron, and it's the most important experience that an Archimedean good can comprise, as While using the truncated dodecahedron along with the truncated icosidodecahedron. The decagon may be the hemi-deal with with the icosidodecahedron, this sort of https://crithitceramics.com/product-category/fusion-sets/