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