regular icosahedron


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Noun1.Regular icosahedron - an icosahedron with twenty equilateral triangles as facesregular icosahedron - an icosahedron with twenty equilateral triangles as faces
ideal solid, Platonic body, Platonic solid, regular convex polyhedron, regular convex solid, regular polyhedron - any one of five solids whose faces are congruent regular polygons and whose polyhedral angles are all congruent
References in periodicals archive ?
Maehara [3] proved that, for the regular icosahedron I, r([H.
In the three dimensional Euclidean space, there are just five types of regular polyhedrons: a regular tetrahedron, cube, regular octahedron, regular dodecahedron and a regular icosahedron.