A nonagon is a 2 dimensional shape that has nine sides. A polygon on the other side refers to a plane that is 2D and has three straight sides.
It's called a "polygon".
It is the decagon.
Hexagon
a line
A quadrilateral.
A nonagon is a 2 dimensional shape that has nine sides. A polygon on the other side refers to a plane that is 2D and has three straight sides.
A polygon.
triangle
A rhombus is one of them
It is an hexagon which has 6 sides
A triangle as no other 2d shape can have 3 sides.
It's called a "polygon".
Provided we are talking about a 2D figure with straight sides, it is an octadecagon.
A 2D shape with 9 sides is called a Nonagon.
Yes * * * * * Not true! A circle is a 2-d shape that is not a polygon. A polygon must have sides that are straight lines. A 2-d shape need not have straight sides.
The shape of 2D is a flat surface.