take, for an example, a duck. This is a 3d shape because it has three dimensions. Compare this to a square, which is 2d. the difference is that the duck has a beak, and the square does not.
It is a 3 dimensional shape
A cube is a 3D figure. A square is a 2D shape.
A camera is a 3D shape. A photograph is a 2D projection of a 3D shape onto a 2D shape.
A television set is a 3D shape. The image (picture) on the television screen is a 2D shape. 3D is when it has length, width, and height. 2D is only length and width.
A piece of paper is 3D.
a pyramid is a 3D shape :)
No, a square is a 2d shape, although a 3d shape can be made using multiple squares at different angles than 180 or 0 to each other.