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Gyroelongated bipyramid
Polyhedron formed by capping an antiprism with pyramids / From Wikipedia, the free encyclopedia
In geometry, the gyroelongated bipyramids are an infinite set of polyhedra, constructed by elongating an n-gonal bipyramid by inserting an n-gonal antiprism between its congruent halves.
Quick Facts Faces, Edges ...
Gyroelongated bipyramid | |
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![]() The pentagonal gyroelongated bipyramid is the regular icosahedron. | |
Faces | 4n triangles |
Edges | 6n |
Vertices | 2n + 2 |
Symmetry group | Dnd, [2+,2n], (2*n), order 4n |
Rotation group | Dn, [2,n]+, (22n), order 2n |
Dual polyhedron | truncated trapezohedra |
Properties | convex |
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