It is tessellating where there are no gaps or overlaps.
A regular 5-sided shape is called a pentagon.
The general name for a plane shape with four sides is a quadrilateral.
A five sided shape is called a pentagon.
The total distance around a plane geometric shape, i.e. one drawn on a piece of paper, is called the shape's perimeter.
Six sided shapes are called hexagons. If all 6 sides are the same size, then the shape is called a regular hexagon.
It is a plane area in the shape of a nonagon!
Regular 20 sided solid is an icosahedron, so a plane equivalent is presumably an icosagon?
A plane shape is regular if each of its sides is of the same length AND each of its angles is of the same measure. An octagon can be regular or irregular.
An eight-sided plane figure is an octagon. If the sides are all the same length, and the angles are all equal, it is a regular octagon.
pentagon
A twelve-sided plane figure is called a dodecagon.
A square.
hexagon
A plane figure with a googol sides is called a googolgon.
plane shape
The shape is called a decagon. If all the sides and angles are the same, it is called a regular decagon.
it is a plane shape because you said its a square