Octadecagon -- From Wolfram MathWorld

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Octadecagon Octadecagon

An 18-sided polygon, sometimes also called an octakaidecagon.

See also

Polygon, Regular Polygon, Trigonometry Angles--Pi/18

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Cite this as:

Weisstein, Eric W. "Octadecagon." From MathWorld--A Wolfram Resource. https://mathworld.wolfram.com/Octadecagon.html

Subject classifications

  • Geometry
  • Plane Geometry
  • Polygons
Created, developed and nurtured by Eric Weisstein at Wolfram Research

Tag » What Shape Has 18 Sides