Meaning of the word nonagon in English

What does nonagon mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

nonagon

US /ˈnɑː.nə.ɡɑːn/
UK /ˈnɒn.ə.ɡən/
"nonagon" picture

Noun

a plane figure with nine straight sides and nine angles

Example:
A regular nonagon has nine equal sides and internal angles of 140 degrees.
The architect designed the floor plan in the shape of a nonagon.