A nonagon.
A Pentagon
A hexagon.
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A hexagon is a poloygon.
A seven sided polygon is called a heptagon
A seven-sided polygon is called a heptagon.
A seven sided figure is heptagon I hoped i helped
A seven sided 2D shape is a heptagon.
you call a seven sided shape a heptagon.
I would guess it is a pyramid that has a seven-sided polygon as its base.
A seven sided shape is called a heptagon.