Icosagon
From Wikipedia, the free encyclopedia
In geometry, an icosagon is a twenty-sided polygon.
The interior angle of a regular icosagon is 162°, and the area with a side length of a is given by
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| Triangle • Quadrilateral • Pentagon •Hexagon • Heptagon • Octagon • Enneagon (Nonagon) • Decagon • Hendecagon • Dodecagon • Triskaidecagon • Pentadecagon • Hexadecagon • Heptadecagon • Enneadecagon • Icosagon • Chiliagon • Myriagon |
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