triskaidecagon or a tridecagon
Chat with our AI personalities
Triskaidecahedron
The name of a 13 sided polygon is Tridecagon.
A 13-sided polygon can either be called a triskaidecagon or a tridecagon.
See: http://en.wikipedia.org/wiki/Triskaidecagon
A 13 sided polygon is called a Tridecagon also a Triskaidecagon.