| Gyroelongated square bipyramid | |
|---|---|
| Type | Johnson J16 - J17 - J18 |
| Faces | 2.8 triangles |
| Edges | 24 |
| Vertices | 10 |
| Vertex configuration | 2(34) 8(35) |
| Symmetry group | D4d, [2+,8], (2*4) |
| Dual polyhedron | Square truncated trapezohedron |
| Properties | convex, deltahedron |
In geometry, the gyroelongated square bipyramid is one of the Johnson solids (J17). As the name suggests, it can be constructed by gyroelongating an octahedron by inserting a square antiprism between its congruent halves. It is a deltahedron.
The 92 Johnson solids were named and described by Norman Johnson in 1966.
The dual of the gyroelongated square bipyramid is a square truncated trapezohedron with 10 faces: 8 pentagons and 2 square.
| Dual gyroelongated square bipyramid | Net of dual |
|---|---|