Nonagon Polygon is a Polygon character who made their first and only appearance in "The Number Playground Chronicle!". They wrote an entire article about themselves, "Nonagon Polygon Has No Fifth, uh... "A, B, C, D, blank, F" what's in a BLANK in Nonagon's writing!" in Section A. Appearance Nonagon Polygon is a Polygon with nine sides. PersonalityNonagon Polygon is an unintelligent character with poor grammar, and and is incredibly defensive to any opposition to them being smart or appealing.