List of geometric shapes

• polygon
• * bicentric polygon
• * concave polygon
• * constructible polygon
• * convex polygon
• * cyclic polygon
• * decagon
• * dodecagon
• * enneagon
• * equiangular polygon
• * equilateral polygon
• * hendecagon
• * heptagon
• * hexagon
• ** Lemoine hexagon
• ** Tucker hexagon
• * icosagon
• ** swastika
• * octagon
• * pentagon
• ** cyclic pentagon
• * regular polygon
• ** regular decagon
• ** regular dodecagon
• ** regular hendecagon
• ** regular hexagon
• ** regular icosagon
• ** regular octagon
• ** regular pentagon
• * star figure
• ** star of Lakshmi
• * star polygon
• ** decagram
• ** dodecagram
• ** octagram
• ** heptagram
• ** star of David, hexagram
• ** star of Goliath, nonagram
• ** pentacle, pentagram
• triangle
• * acute triangle
• * anticomplementary triangle
• * equilateral triangle
• * excentral triangle, tritangent triangle
• * isosceles triangle
• * medial triangle, auxiliary triangle
• * obtuse triangle
• * rational triangle
• * right triangle
• ** 30-60-90 triangle
• ** isosceles right triangle
• * scalene triangle
• * Reuleaux triangle
• parallelogram
• * equilateral parallelogram
• ** Lozenge
• * rhomboid
• * Wittenbauer's parallelogram
• Penrose tile
• * Penrose dart
• * Penrose kite
• rectangle
• rhombus, diamond
• * Harborth's tile
• square
• trapezium
• * isosceles trapezium
• quadrilateral
• * cyclic quadrilateral, tetrachord, chordal tetragon ?
• ** Brahmagupta's trapezium
• * equilic quadrilateral
• * kite
• * rational quadrilateral
• * strombus
• * tangential quadrilateral, tangential tetragon ?
• * trapezoid
• ** isosceles trapezoid
• polydrafter

• annulus
• arbelos
• circle
• * Archimedes' circle
• * Bankoff circle
• * circumcircle
• * excircle
• * incircle
• * nine point circle
• circular sector
• circular segment
• lune
• Reuleaux polygon
• rotor
• * lens, fish bladder, vesica piscis
• * Reuleaux triangle
• salinon
• semicircle
• triquetra
• Yin-Yang

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