Bilunabirotunda (EntityTopic, 14)
From Hi.gher. Space
(Difference between revisions)
(created page) |
(add FLD) |
||
| Line 5: | Line 5: | ||
| genus=0 | | genus=0 | ||
| extra={{STS Polytope | | extra={{STS Polytope | ||
| + | | flayout={{FLD|a2tr|ti|asrtm|ditm|aqtm|editm|atlsl|cr}} | ||
}}}} | }}}} | ||
Revision as of 00:08, 5 February 2014
The bilunabirotunda is the 91st Johnson solid, J91. It suddenly became important when the castellated rhodoperihedral prism was discovered.
Equations
- The hypervolumes of a bilunabirotunda with side length l are given by:
total edge length = 26l
surface area = (2 + 2√3 + √(25+10√5)) · l2
volume = Unknown
| Notable Trishapes | |
| Regular: | tetrahedron • cube • octahedron • dodecahedron • icosahedron |
| Direct truncates: | tetrahedral truncate • cubic truncate • octahedral truncate • dodecahedral truncate • icosahedral truncate |
| Mesotruncates: | stauromesohedron • stauroperihedron • stauropantohedron • rhodomesohedron • rhodoperihedron • rhodopantohedron |
| Snubs: | snub staurohedron • snub rhodohedron |
| Curved: | sphere • torus • cylinder • cone • frustum • crind |
