A decagon is a ten-sided polygon. Several special types of decagons are illustrated above. In particular, a decagon with vertices equally spaced around a circle and with all sides the same length is a regular polygon known as a regular decagon.
See alsoHexagon,
Octagon,
Pentagon,
Polygon,
Regular Decagon Explore this topic in the MathWorld classroom Explore with Wolfram|AlphaMore things to try:
Cite this as:Weisstein, Eric W. "Decagon." From MathWorld--A Wolfram Resource. https://mathworld.wolfram.com/Decagon.html
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