English

Noun

pentadecagon ‎(plural pentadecagons)

1. a polygon with fifteen sides

   • 2003: In ⊙ O, draw chord AB equal to r. Draw chord AC equal to Vt (which is the side of a regular decagon). CB is now one side of the regular pentadecagon. — Steven Atiyah, Essentials of Geometry (Trafford 2003, p. 357)

Synonyms

• pentakaidecagon