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A regular tridecagon
|Edges and vertices||13|
|Symmetry group||Dihedral (D13), order 2×13|
|Internal angle (degrees)||≈152.308°|
|Properties||Convex, cyclic, equilateral, isogonal, isotoxal|
Regular tridecagon[change | change source]
All sides of a regular tridecagon are the same length. Each corner is 147.27°. All corners added together equal 6840°.
Area[change | change source]
The amount of space a regular tridecagon takes up is
a is the length of one of its sides.
Numismatic use[change | change source]
Other pages[change | change source]
References[change | change source]
- Colin R. Bruce, II, George Cuhaj, and Thomas Michael, 2007 Standard Catalog of World Coins, Krause Publications, 2006, Template:Isbn, p. 81.