T-tetromino
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| T-tetromino | |
|---|---|
 | |
| Rank | 2 |
| Type | Tetromino |
| Space | Spherical |
| Elements | |
| Edges | 1+1+2+2+2 |
| Vertices | 2+2+2+2 |
| Measures (minor edge length = 1) | |
| Area | 4 |
| Perimeter | 10 |
| Abstract & topological properties | |
| Flag count | 16 |
| Euler characteristic | 0 |
| Orientable | Yes |
| Properties | |
| Symmetry | A1×I, order 2 |
| Convex | No |
| Net count | 4 |
The T-tetromino is a 4-polyomino.
It may be considered as an 8-sided figure with a single length 3 side, or as a 10-sided figure with colinear edges. The latter is most common when considering tessellations involving the T-tetromino as it makes it equilateral.
Related polytopes[edit | edit source]
The prism of the T-tetromino is the T-tetracube. It has two T-tetromino faces, and is the only tetracube with T-tetromino faces.
The T-tetromino is the smallest of a general class of polyominos, the T-polyominos. The other members of this family can be formed by extending the central leg with additional squares while maintaining reflection symmetry.
External links[edit | edit source]
- Weisstein, Eric W. "T-Polyomino" at MathWorld.
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