A heptagon.
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 is the decagon.
Hexagon
a line
A heptagon.
A 2-D shape with seven sides is called a HEPTAGON.
It is a 7 sided heptagon
hexagon?
A triangle as no other 2d shape can have 3 sides.
A 2D shape with 9 sides is called a Nonagon.
A seven sided 2D shape is a heptagon.
The shape of 2D is a flat surface.
A 2D shape that has four sides and is thirteen letters long is a quadrilateral.
Any 4 sided 2D shape
No. A 2d shape is a plane area, which may be regarded as a face, which is bounded by a side or sides.
2d shapes that do not have equal sides do not usually have special names.