A 2d nine sided shape is called a nonagon.
a 2d nonagon
The equivalent of a octahedron as a 2D shape is an 8 sided octagon.
octogon
nonoetregon
10 sided 2D shape is called a decagon 20 sided 2D shape is called a icosagon 30 sided 2D shape is a swimming pool 40 sided 2D shape is unknown 50 sided 2D shape is unknown 60 sided 2d shape is unknown 70 sided 2d shape is unknown 80 sided 2d shape is unknown 90 sided 2d shape is unknown 100 sided 2d shape is unknown 110 sided 2d shape is unknown 111 sided 2d shape is unknown 120 sided 2d shape is unknown 130 sided 2d shape is unknown
A seven sided 2D shape is a heptagon.
A 2d nine sided shape is called a nonagon.
a 2d nonagon
As a 2D polygon shape it is an 8 sided octagon.
A 5-sided 2D shape would be a pentagon, pent, meaning 5.
The equivalent of a octahedron as a 2D shape is an 8 sided octagon.
Any 4 sided 2D shape
a triangle
A heptagon is a7 sided 2D shape. Hope that will help
A 2D shape with forty sides is known as a tentracontagon.
Such a 2D shape is a hexagon, a six sided figure.