Octagon (EntityTopic, 12)
From Hi.gher. Space
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Octagonal faces are found in these trishapes on FGwiki: | Octagonal faces are found in these trishapes on FGwiki: | ||
*[[Cubic truncate]] (6×, 63%) | *[[Cubic truncate]] (6×, 63%) | ||
| + | *[[Octagonal prism]] (2×, 20%) | ||
{{Dishapes}} | {{Dishapes}} | ||
Revision as of 11:12, 11 March 2011
Equations
- The area of a regular octagon with side length l is:
l2 · 2(1 + √2)
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%)
- Octagonal prism (2×, 20%)
| Notable Dishapes | |
| Flat: | triangle • square • pentagon • hexagon • octagon • decagon |
| Curved: | circle |
