Pentagrammic antiprism
Encyclopedia
In geometry
, the pentagrammic antiprism is one in an infinite set of nonconvex antiprisms formed by triangle sides and two regular star polygon caps, in this case two pentagram
s.
This polyhedron is identified with the indexed name U79 as a uniform polyhedron
.
An alternative representation with hollow centers to the pentagrams.
Geometry
Geometry arose as the field of knowledge dealing with spatial relationships. Geometry was one of the two fields of pre-modern mathematics, the other being the study of numbers ....
, the pentagrammic antiprism is one in an infinite set of nonconvex antiprisms formed by triangle sides and two regular star polygon caps, in this case two pentagram
Pentagram
A pentagram is the shape of a five-pointed star drawn with five straight strokes...
s.
This polyhedron is identified with the indexed name U79 as a uniform polyhedron
Uniform polyhedron
A uniform polyhedron is a polyhedron which has regular polygons as faces and is vertex-transitive...
.
An alternative representation with hollow centers to the pentagrams.
External links
- http://www.mathconsult.ch/showroom/unipoly/04.html
- http://www.math.technion.ac.il/~rl/kaleido/data/04.html