Get any 4 sided shape and vary all the sides to different lenghts and make it look weird-there you go an irregular 4 sided shape.
A five sided shape is called a pentagon.
5 sided shape is a pentagon.
5 sided shape is a pentagon.
an octaghex that has 53 sides
It is a quadrilateral with no special name.
Its a heptagon. A HEXAgon is 6 sided. A pentagon is 5 sided.
There is no specific name for such a shape.
A plane figure with 16 sides is a hexadecagon.
100 sides will be a hectogon or hecatontagon
A one-million-sided polygon.
An 11 sided polygon is an undecagon