List of geometric shapes

This is a list of geometric shapes.

[edit] Generally composed of straight line segments

• polygon
  • concave polygon
  • constructible polygon
  • convex polygon
  • cyclic polygon
  • decagon
  • digon
  • dodecagon
  • nonagon
  • equiangular polygon
  • equilateral polygon
  • henagon
  • hendecagon
  • heptagon
  • hexadecagon
  • hexagon
    • Lemoine hexagon
  • icosagon
    • swastika
  • octagon
  • pentagon
  • regular polygon
    • regular decagon
    • regular octagon
    • regular pentagon
  • star without crossing lines
  • star polygon
    • decagram
    • octagram
    • star of Lakshmi (octagram)
    • heptagram
    • star of David, hexagram
    • pentagram
• triangle
  • acute triangle
  • anticomplementary triangle
  • equilateral triangle
  • excentral triangle
  • isosceles triangle
  • medial triangle
  • obtuse triangle
  • rational triangle
  • right triangle
    • 30-60-90 triangle
    • isosceles right triangle
    • Kepler triangle
  • scalene triangle
  • Reuleaux triangle
• parallelogram
  • equilateral parallelogram: rhombus
    • Lozenge
  • rhomboid
• Penrose tile
• rectangle
• rhombus
• square
• trapezium
  • isosceles trapezium
• quadrilateral
  • cyclic quadrilateral, tetrachord
  • kite
  • tangential quadrilateral
  • trapezoid
    • isosceles trapezoid
• polydrafter

[edit] Curved

• annulus
• arbelos
• circle
  • disc
  • Archimedes' twin circles
  • Bankoff circle
  • circumcircle
  • excircle
  • incircle
  • nine-point circle
• circular sector
• circular segment
• crescent
• ellipse
• various lemniscates
• lune
• oval
• Reuleaux polygon
• rotor
  • lens, vesica piscis (fish bladder)
  • Reuleaux triangle
• rounded rectangle
• semicircle
• sphere
• stadium
• tomoe, magatama
• triquetra
• Yin-Yang

[edit] Not composed of circular arcs

• Archimedean spiral
• astroid, paracycle, cubocycloid
• deltoid
• ellipse
• smoothed octagon
• super ellipse
• tomahawk

[edit] See also

• List of curves
• List of triangle topics
• List of circle topics
• List of geometric surfaces
• Cuisenaire rods
• Unicode Geometric Shapes