Triskaidecagon

Triskaidecagon

In Geometry, a triskaidecagon (or tridecagon) is a polygon with 13 sides and angles. The measure of each internal angle of a regular triskaidecagon is approximately 152.308 degrees, and the area with side length "a" is given by:A = frac{13}{4}a^2 cot frac{pi}{13} simeq 13.1858,a^2.A regular triskaidecagon is not constructible with compass and straightedge. However, it is constructible using a Neusis construction.

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