A regular tetradecagon, also called a regular tetrakaidecagon, is a regular polygon with 14 sides.
Regular Tetradecagon
See also
Tetradecagon, Regular PolygonExplore with Wolfram|Alpha
Cite this as:
Weisstein, Eric W. "Regular Tetradecagon." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/RegularTetradecagon.html