It's a 2D shape.
a pyramid is a 3D shape :)
Paper is a 3D object.
A 2d shape is a flat object (ex: square, circle, etc.) and a 3d shape is a shape in space (ex: cube, sphere, etc.)
3D
A net is a 2D representation of a 3D shape
A camera is a 3D shape. A photograph is a 2D projection of a 3D shape onto a 2D shape.
2d
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.
It's a 2D shape.
A piece of paper is 3D.
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.
The difference between 2d and 3d shapes is that, a 2d shape is flat, has no volume and depth and cannot be handled while a 3d shape can be held, has depth, volume and can hold things inside it. These are the dimensional shapes which are mostly used in geometry.
2d
2D.
a pyramid is a 3D shape :)
It's a 2D shape.