What is another word for regular icosahedron?
Pronunciation: [ɹˈɛɡjuːləɹ ˌa͡ɪkəsɐhˈiːdɹən] (IPA) 
A regular icosahedron is a three-dimensional figure with 20 equilateral triangular faces and 12 vertices. Other synonyms for a regular icosahedron include a Platonic solid, a polyhedron, and an equilateral triangular dodecahedron. It is a geometric shape with perfect symmetry and has 30 edges, each of the same length. The regular icosahedron is also known as a d20, perfect for use in role-playing games. This shape is commonly found in nature, including the molecular structure of certain viruses and the shape of pollen grains. The regular icosahedron is one of five Platonic solids, which are three-dimensional shapes where all faces are identical and all angles and vertices are the same.
