- ἕδρα (hédra) 'seat'. The
plural can be
either "icosahedra" (/-drə/) or "
icosahedrons".
There are
infinitely many non-similar
shapes of icosahedra, some of...
- 600-cell.
Regular icosahedrons can be
found in nature, a
common example is the adenoviruses.
Other applications of the
regular icosahedron are the
usage of...
- In geometry, the
truncated icosahedron is a
polyhedron that can be
constructed by
truncating all of the
regular icosahedron's vertices. Intuitively, it...
-
represented by its Schläfli
symbol {5,3}. The dual
polyhedron is the
regular icosahedron {3,5},
having five
equilateral triangles around each vertex. The convex...
- In geometry, the
metabidiminished icosahedron is one of the
Johnson solids (J62). The name
refers to one way of
constructing it, by
removing two pentagonal...
-
Complete icosahedron may
refer to: an
icosahedron which has had none of its
faces removed, as
opposed to a
partial icosahedron such as a
geodesic hemisphere...
- In geometry, the
triakis icosahedron is an
Archimedean dual solid, or a
Catalan solid, with 60
isosceles triangle faces. Its dual is the
truncated dodecahedron...
- its side and thus
appears in the
construction of the
dodecahedron and
icosahedron. A
golden rectangle—that is, a
rectangle with an
aspect ratio of φ...
-
alternative name is
diminished icosahedron because it can be
constructed by
removing a
pentagonal pyramid from a
regular icosahedron. The
gyroelongated pentagonal...
- In geometry, the
great icosahedron is one of four Kepler–Poinsot
polyhedra (nonconvex
regular polyhedra), with Schläfli
symbol {3,5⁄2} and Coxeter-Dynkin...
