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A dodecagon is a 2-dimensional polygon with twelve edges. The Bowers acronym for a dodecagon is dog.

Structure and Sections

The regular dodecagon has each angle at 150 degrees. It can be seen as a truncated hexagon.

Hypervolumes

• vertex count = $12$
• edge length = $12l$
• surface area = $3\left(2 + \sqrt{3}\right) l^2$

Subfacets

$\{1\}$ $\{2\}$ $\{3\}$ $\{4\}$ $\{5\}$ $\{6\}$ $\{7\}$ $\{8\}$ $\{9\}$ $\{10\}$ $\{11\}$ $\{12\}$ $\{13\}$ $\{14\}$ $\{15\}$ $\{16\}$ ... $\{\aleph_0\}$
Monogon Digon Triangle Square Pentagon Hexagon Heptagon Octagon Enneagon Decagon Hendecagon Dodecagon Tridecagon Tetradecagon Pentadecagon Hexadecagon ... Apeirogon
Regular
$t_0 \{12\}$
Rectified
$t_1 \{12\}$
Truncated
$t_{0,1} \{12\}$
Dodecagon Dodecagon Icositetragon
Regular
$t_0 \{6\}$
Rectified
$t_1 \{6\}$
Truncated
$t_{0,1} \{6\}$
Hexagon Hexagon Dodecagon