Octagon (EntityTopic, 12)
From Hi.gher. Space
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| pv_circle=<sup>2√2</sup>⁄<sub>π</sub> ≈ 0.9003 | | pv_circle=<sup>2√2</sup>⁄<sub>π</sub> ≈ 0.9003 | ||
| pv_square=2(√2-1) ≈ 0.8284 | | pv_square=2(√2-1) ≈ 0.8284 | ||
| - | | extra={{STS Rotope | + | | extra={{STS Matrix| |
| + | 8 0 | ||
| + | 1 1}}{{STS Rotope | ||
| attrib=none | | attrib=none | ||
}}{{STS Uniform polytope | }}{{STS Uniform polytope | ||
Revision as of 00:41, 8 November 2008
Segmentation
The octagon of side 1 may be segmented into 8× isosceles triangle with sides {1,2×√(1+√2⁄2)}.
Use
Octagonal faces are found in these trishapes on FGwiki:
- Cubic truncate (6×, 63%)
| Notable Dishapes | |
| Flat: | triangle • square • pentagon • hexagon • octagon • decagon |
| Curved: | circle |
