An octagon.
An octagon is two dimensional and has eight sides.
An octagon is a shape that has eight sides.
an octagon it has eight sides
In three dimensions, it is called an octahedron. The flat shape with eight sides is an octagon. You can look it up in Wikipedia.org
There is no specific name for such a shape.
A shape with 8 sides is an octagon.
a eight sided shape is called a octagon.
An Octagon.
An octagon.
An octagon has 8 sides and 8 angles.
The shape is an octagon.
An octagon.
octagon
A shape with 8 equal sides is called a regular octagon.
A heptogram is a shape with eight sides.
An octagon.