Polytopes Package
As of Version 12.0, all the functionality of the Polytopes package is built into the Wolfram System. »
Vertices — vertex coordinates of a polytope
NumberOfVertices — number of vertices of a polytope
Faces — list of the faces of a polytope
NumberOfFaces — number of faces of a polytope
NumberOfEdges — number of edges of a polytope
Area — area of a polygon or polyhedron
InscribedRadius — radius of an inscribed circle or sphere of a polygon or polyhedron
CircumscribedRadius — radius of a circumscribed circle or sphere
Polygons
Digon ▪ Pentagon ▪ Hexagon ▪ Heptagon ▪ Octagon ▪ Nonagon ▪ Decagon ▪ Undecagon ▪ Dodecagon