41.
Hexagon
Any pentagon has.
rectangle means that it is a 2D shape and it has four sides and four corners
Any 4 sided 2D shape
That would be a square :D
A triangle as no other 2d shape can have 3 sides.
9
4
Edges are sides in terms of 2D shapes but they are the place where two sides of a 3D shape meet ie. the sharp edge that runs between corners
It has 5 corners if it is a 3D shape like a piramid but if it is 2D it is 3
A 2D shape with 9 sides is called a Nonagon.
The shape of 2D is a flat surface.