A quadrilateral
A 12 sided figure is called a dodecagon.
A twenty sided, 2D figure is called an icosagon.
A two-dimensional eleven-sided figure is called a hendecagon.
A plane figure bounded by some numbers of straight sides is called a polygon. Thus a polygon with ten-sided is called a decagon.
any four sided figure is called quadrilateral
A three sided figure with all unequal sides is called a scalene triangle. ■
quadrilateral
A quadrilateral
A square has all 4 sides equal in length. A four sided closed figure with all sides different length is called a quadrilateral.
A 12 sided figure is called a dodecagon.
An irregular decagon
parallelogram
A 5-sided figure is called a "Pentagon".
A 10 sided shape is a decagon
A plane figure with a googol sides is called a googolgon.
an four sided figure is called a quadrilateral.