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Pentagon

Explore Pentagon on MathWorld


A pentagon is a 5-sided polygon.

Pentagon is an elementary-school-level concept.


Classroom Articles on Polygons

  • Decagon
  • Parallelogram
  • Dodecagon
  • Polygon
  • Equilateral Triangle
  • Quadrilateral
  • Hendecagon
  • Rectangle
  • Heptagon
  • Regular Polygon
  • Hexagon
  • Right Triangle
  • Isosceles Triangle
  • Square
  • Nonagon
  • Trapezoid
  • Octagon
  • Triangle

  • Classroom Articles on Geometry (Up to Elementary-School Level)

  • Acute Angle
  • Parallel
  • Angle
  • Perimeter
  • Area
  • Perpendicular
  • Circle
  • Point
  • Cone
  • Prism
  • Cube
  • Pyramid
  • Cylinder
  • Radius
  • Diameter
  • Sphere
  • Geometric Construction
  • Surface Area
  • Obtuse Angle
  • Volume