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An icosagon is a 2-dimensional polygon with twenty edges.

Structure and Sections

The regular icosagon has each angle at 162 degrees. It can be seen as a truncated decagon.

Regular
$t_0 \{10\}$
Rectified
$t_1 \{10\}$
Truncated
$t_{0,1} \{10\}$
Decagon Decagon Icosagon
Regular
$t_0 \{20\}$
Rectified
$t_1 \{20\}$
Truncated
$t_{0,1} \{20\}$
Icosagon Icosagon Tetracontagon
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