Polyhedra. AS long as the 3D shape has no curves
Volume if it's a 3D figure and area if it's a 2D figure
A geometric figure is a shape like a square or rectangle and it can be used in different views like 3D, 2D and 1D would be just a line. So there is your answer!
The cone IS a 3d figure.
A line.
It depends on the type of figure. If it is a 2D figure, then it is called area. If it is a 3D figure, then it is called volume.
A circle (2D) or a sphere (3D)
isn't it called face?
Octagon.
dodecagon
A solid.
polygon ?
It is the perimeter.