Noun
any one of five solids whose faces are congruent regular polygons and whose polyhedral angles are all congruent
Source: WordNetExpansion or cantellation involves moving each face away from the center (by the same distance so as to preserve the symmetry of the Platonic solid) and taking the convex hull. Source: Internet
Starting with a Platonic solid, truncation involves cutting away of corners. Source: Internet
Geometric properties Angles There are a number of angles associated with each Platonic solid. Source: Internet
Indeed, every combinatorial property of one Platonic solid can be interpreted as another combinatorial property of the dual. Source: Internet
More generally, one can dualize a Platonic solid with respect to a sphere of radius d concentric with the solid. Source: Internet
Of the fifth Platonic solid, the dodecahedron, Plato obscurely remarks, ". Source: Internet