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)