| Elongated pentagonal bipyramid | |
|---|---|
 | |
| Type | Johnson J15 - J16 - J17 |
| Faces | 10 triangles 5 squares |
| Edges | 25 |
| Vertices | 12 |
| Vertex configuration | 10(32.42) 2(35) |
| Symmetry group | D5h |
| Dual polyhedron | Pentagonal bifrustum |
| Properties | convex |
In geometry, the elongated pentagonal bipyramid is one of the Johnson solids (J16). As the name suggests, it can be constructed by elongating a pentagonal bipyramid (J13) by inserting a pentagonal prism between its congruent halves.
The 92 Johnson solids were named and described by Norman Johnson in 1966.
Dual polyhedron
The dual of the elongated square bipyramid has 12 faces: 10 trapezoidal and 2 pentagonal.
| Dual elongated pentagonal bipyramid | Net of dual |
|---|---|
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