Pentagon
2D shape
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In geometry, a pentagon is any five-sided polygon or 5-gon. The sum of the internal angles in a simple pentagon is 540°.
A pentagon may be simple or self-intersecting. A self-intersecting regular pentagon is called a pentagram. Wikipedia
Number of edges: 5
Line of symmetry: 5
Sum of interior angles: 540°
Number of vertices: 5
Rotational symmetry order: 5
Symmetry group: order 2×5 and Dihedral (D₅)