Pentagon

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.... Wikipedia

  • Edges and vertices:  5
  • Schläfli symbol:  (for regular pentagon)
  • Internal angle (degrees):  108° (if equiangular, including regular)
  • Data source:  DuckDuckGo