quadrangle
tetragon
quadrilateral
fourgon
pentagon
triangle
trigon
trilateral
hexagon
tetracontagon
hexacontagon
polygonal
triacontatetragon
triacontakaitetragon
equiangular triangle
equilateral triangle
poly
octadecagon
pentacontagon
square
hectogon
hexahectaenneacontakaiheptagon
polyangle
icositetragon
henagon
heptagon
icositrigon
nonagon
excircle
heptacontagon
hectagon
regular polygon
octagon
decagon
many-sided
teragon
undecagon
tessellation
incircle
foursquare
heptadecagon
enneagon
googolgon
convex polyhedron
isogon
apothem
geometrical regularity
octacontagon
concave polygon
tetracontakaihexagon
digon
triacontagon
bigon
kilogon
enneadecagon
regularity
meshlet
dihectagon
polygonically
megagon
apeirogon
polygonar
enneacontahexagon
polygonial
tetradecagon
polygonic
polygonous
multipolygon
polygonate
tetrakaidecagon
reentering polygon
dodecagon
reentrant polygon
icosagon
pyramid
enneacontagon
ideal solid
sidelength
Platonic solid
regular convex solid
regular polyhedron
Platonic body
regular convex polyhedron
concave polyhedron
triacontadigon
cyclic quadrilateral
icosidigon
icosihenagon
icosikaidigon