A seven sided 2D shape is a heptagon.
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 2d nine sided shape is called a nonagon.
It is a 7 sided heptagon
A 2D shape with forty sides is known as a tentracontagon.
A 2D seven sided figure is called a heptagon. A 3D seven faced polygon is called a heptahedron.
Its called a HEPTAGON
A 14 sided polygon is called a tetrakaidecagon.
heptadecagon is a 17 sided 2d shape
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enneadecagon
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