3d – Three Dimensional Figures
An easy way to think of a 3D shape is any shape or object that takes up air space. Think about your own body for a minute. Your body is a 3D shape. It is not a uniform shape, like a building block, but it is a 3D shape, nonetheless,
3D shape has three dimensions, D stands for dimensions, in a 3D world we can travel forward, backward, right, left, up, down. The ability to travel into space differentiates 3D from 2D.