Decagon
2D shape
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In geometry, a decagon is a ten-sided polygon or 10-gon. The total sum of the interior angles of a simple decagon is 1440°. Wikipedia
Angle measure: 144°
Number of edges: 10
Sum of interior angles: 1,440°
Line of symmetry: 10
Rotational symmetry order: 10
Symmetry group: order 2×10 and Dihedral (D₁₀)
Number of vertices: 10