Biaugmented pentagonal prism
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| Biaugmented pentagonal prism | |
|---|---|
 |
|
| Type | Johnson J52 - J53 - J54 |
| Faces | 2.2+4 triangles 1+2 squares 2 pentagons |
| Edges | 23 |
| Vertices | 12 |
| Vertex configuration | 2(42.5) 2(34) 2.4(32.4.5) |
| Symmetry group | C2v |
| Dual | - |
| Properties | convex |
In geometry, the biaugmented pentagonal prism is one of the Johnson solids (J53). As the name suggests, it can be constructed by doubly augmenting a pentagonal prism by attaching square pyramids (J1) to two of its nonadjacent equatorial faces. (The solid obtained by attaching pyramids to adjacent equatorial faces is not convex, and thus not a Johnson solid.)
The 92 Johnson solids were named and described by Norman Johnson in 1966.
