ennedagon
Triacontagon
it doesnt have a name if it has the name is square
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quadrilaterals
They are 4 sided quadrilaterals
well there are quadrilaterals, the 4 sided polygons. There's parallelogram,trapezoid,isosceles trapizod rhombus,rectangle,square
a nonagon is the name given to a nine sided polygon
icosikaidi is the name for a 22 sided polygon. For a list of the names for polygons, see the related link.
The name for a 7-sided polygon is septagon, the root word "sept" meaning "seven".
An icosikaidigon is a 22-sided polygon. For names of polygons see http://mathforum.org/dr.math/faq/faq.polygon.names.html
A trapezoid belongs to the class of polygons known as 4 sided quadrilaterals