Icosagon
2D shape
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In geometry, an icosagon or 20-gon is a twenty-sided polygon. The sum of any icosagon's interior angles is 3240 degrees. Wikipedia
Number of edges: 20
Sum of interior angles: 3,240°
Line of symmetry: 20
Number of vertices: 20
Symmetry group: order 2×20 and Dihedral (D₂₀)
Dual polygon: Self
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