Yes
A 3d square
Length width dept
By definition a sphere is 3D. If it were only 2D it would be a circle.
the artistc definition of a flat sketch is a sketch that is not really 3D
No. Blu-ray is a high definition DVD format that has nothing to do with 3D.
area is the amount of space on a flat or 3d figure
There is no such thing. A polygon, by definition, is 2-dimensional.
A shape that it is 3D and has sides, corners and faces
A hexagon is a planar shape, meaning that it is by definition two dimensional. Therefore, there cannot be a 3D hexagon.
The difference between 3D and HD 3D is the HD, which stands for high definition. When you get to a certain number of pixels per inch, you have higher definition in your image.
A prism, by definition, is 3D. You cannot have a 2D prism.
a 3d object made of 2d faces with all flat sides