# Dodecagonal prism

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{{Short description|12-sided box}}
{{More footnotes needed|date=August 2025}}
{{Prism polyhedra db|Prism even polyhedron stat table|P12}}
thumb|3D model of a uniform dodecagonal prism
In [geometry](/source/geometry), the '''dodecagonal prism''' is the tenth in an infinite set of [prisms](/source/Prism_(geometry)), formed by square sides and two regular [dodecagon](/source/dodecagon) caps.

If faces are all regular, it is a [uniform polyhedron](/source/uniform_polyhedron).

== Use ==

It is used in the construction of two prismatic [uniform honeycomb](/source/uniform_honeycomb)s: 
{| class=wikitable width=300
|150px<BR>[Omnitruncated triangular-hexagonal prismatic honeycomb](/source/Omnitruncated_triangular-hexagonal_prismatic_honeycomb)<BR>{{CDD||node_1|6|node_1|3|node_1|2|node_1|infin|node}}
|150px<BR>[Truncated hexagonal prismatic honeycomb](/source/Truncated_hexagonal_prismatic_honeycomb)<BR>{{CDD|node_1|6|node_1|3|node|2|node_1|infin|node}}
|}
The new [British one pound (£1) coin](/source/One_pound_(British_coin)), which entered [circulation](/source/Circulation_(currency)) in March 2017, is shaped like a dodecagonal prism.<ref>{{Cite news|url=https://www.bbc.co.uk/news/uk-38480180|title=New 12-sided pound coin to enter circulation in March|date=2017-01-01|work=BBC News|access-date=2017-04-20|language=en-GB}}</ref>

== Related polyhedra ==
{{UniformPrisms}}

==References==
{{Reflist}}

==External links==
* {{mathworld | urlname = Prism | title = Prism}}

Category:Prismatoid polyhedra
Category:Zonohedra

{{Polyhedron-stub}}

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Adapted from the Wikipedia article [Dodecagonal prism](https://en.wikipedia.org/wiki/Dodecagonal_prism) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Dodecagonal_prism?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.