![cover image](https://wikiwandv2-19431.kxcdn.com/_next/image?url=https://upload.wikimedia.org/wikipedia/commons/thumb/e/ee/Pentagrammic_antiprism.png/640px-Pentagrammic_antiprism.png&w=640&q=50)
Prismatic uniform polyhedron
Uniform polyhedron with dihedral symmetry / From Wikipedia, the free encyclopedia
In geometry, a prismatic uniform polyhedron is a uniform polyhedron with dihedral symmetry. They exist in two infinite families, the uniform prisms and the uniform antiprisms. All have their vertices in parallel planes and are therefore prismatoids.
![Thumb image](http://upload.wikimedia.org/wikipedia/commons/thumb/e/ee/Pentagrammic_antiprism.png/640px-Pentagrammic_antiprism.png)