There is no such thing as a two-sided object.
the Greeks used prefexes up to ten, modernly we have sdded dodecagon for a twelvesided object and undecagon for an eleven sided object so the propor name would be a 27 sided object.
An octogon
can you give me an example of an 8 sided object
The name of a 6 sided polygon is Hexagon.
A six-sided object is called a hexagon.
Hexagon
It's a 6 sided shape.
Cube.
A hexagon.
hexagon
An object with 6 corners is called a hexagon.
Octahedron.
There is no such thing as a two-sided object.
A nine-sided object is known as a nonagon.
For a regular six sided object: a cube or rectangular prism (box); just multiply length by width by height. Whatever units you use for the measurements, the answer is in cubic units.
...um...a 6 sided object with each side being completely identical to the others