Octagon - Wikipedia
https://en.wikipedia.org/wiki/Octagon
OverviewPropertiesSkewSymmetryUseSee alsoExternal linksIn geometry, an octagon (from the Greek ὀκτάγωνον oktágōnon, "eight angles") is an eight-sided polygon or 8-gon. A regular octagon has Schläfli symbol {8} and can also be constructed as a quasiregular truncated square, t{4}, which alternates two types of edges. A truncated octagon, t{8} is a hexadecagon, {16}. A 3D analog of the octagon ca… Dual polygon: Self Internal angle (degrees): 135° Edges and vertices: 8
Dual polygon: Self
Internal angle (degrees): 135°
Edges and vertices: 8
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