Elongated triangular pyramid
| Elongated triangular pyramid | |
|---|---|
 | |
| Faces | 1+3 triangles 3 squares |
| Vertices | 7 |
| Vertex configuration | 1(33) 3(3.42) 3(32.42) |
| Symmetry group | C3v |
| Dual polyhedron | self |
| Properties | convex |
| Net | |
 | |
In geometry, the elongated triangular pyramid is one of the Johnson solids (J7). Norman Johnson discovered elongated triangular pyramids. As the name suggests, it can be constructed by elongating a tetrahedron by attaching a triangular prism to its base. Like any elongated pyramid, the resulting solid is self-dual.
The 92 Johnson solids were named and described by Norman Johnson in 1966.
External links
- Weisstein, Eric W. "Elongated triangular pyramid". MathWorld.
- Weisstein, Eric W. "Johnson solid". MathWorld.
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