What is another word for undecagon?
Pronunciation: [ˌʌndɪkˈaɡən] (IPA) 
Undecagon, also known as an 11-sided polygon, is a shape commonly found in geometry and mathematics. However, there are other ways to describe this shape aside from its common name. One synonym for undecagon is "hendecagon," which comes from the Greek word "hendeka" meaning "eleven." Other synonyms include "11-gon," "eleven-sided polygon," and "endecagon." Regardless of the name used to describe it, an undecagon's angles always sum to 1620 degrees, and it has 55 distinct diagonals connecting non-adjacent vertices. Though this shape may not be as commonly used as others, its unique properties make it an interesting geometric figure to explore and study.
