"Deca" comes from Latin for "Ten" as in decagon and dodecagon where the "do-" represents two (more).
icosikaidi is the name for a 22 sided polygon. For a list of the names for polygons, see the related link.
A polygon with 16 sides is called a hexadecagon or hexakaidecagon.See related link below..
ennedagon
Triacontagon
it doesnt have a name if it has the name is square
a twelve sided shape is called a dodecagon.
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quadrilaterals
They are 4 sided quadrilaterals
Polygons are named based on the number of their sides. From eleven to fifty, the names are as follows: an eleven-sided polygon is called a hendecagon, a twelve-sided polygon is a dodecagon, a thirteen-sided polygon is a triskaidecagon, and so on, up to a fifty-sided polygon, which is known as a pentacontagon. Each subsequent polygon name generally follows a Greek or Latin numerical prefix combined with the suffix "-gon."
well there are quadrilaterals, the 4 sided polygons. There's parallelogram,trapezoid,isosceles trapizod rhombus,rectangle,square
dodecagon