Parallelogram
"Square or Quadrangle"
A quadrilateral
you call a seven sided shape a heptagon.
An 11 sided shape is an Eptogon
It can be a quadrilateral, though quadrilaterals are 4-sided shapes in general.
A 12-sided shape is called a dodecagon.
A 30 sided shape is called a Triacontagon.
a 4 sided shape is called a quadrilateral
A 3 sided shape is a triangle. A 4 sided shape could be a square or rectangle.
A Square a square Quadrilateral I think
A nine sided shape or polygon is called a nonagon.