Elongated square pyramid
From Wikipedia, the free encyclopedia
| Elongated square pyramid | |
|---|---|
 |
|
| Type | Johnson J7 - J8 - J9 |
| Faces | 4 triangles 1+4 squares |
| Edges | 16 |
| Vertices | 9 |
| Vertex configuration | 4(43) 1(34) 4(32.42) |
| Symmetry group | C4v |
| Dual | self |
| Properties | convex |
In geometry, the elongated square pyramid is one of the Johnson solids (J8). As the name suggests, it can be constructed by elongating a square pyramid (J1) by attaching a cube to its square base. Like any elongated pyramid, it is self-dual.
The 92 Johnson solids were named and described by Norman Johnson in 1966.
