**2D vs. 3D vs. 4D**

What is Difference between 2D, 3D and 4D? A dimension is any measurable spatial extent, whether by its length, width, height, depth, and thickness … The terms 2D, 3D and 4D are used according to the number of dimensions they portray.

**Difference between 2D, 3D and 4D**

If you do not understand the difference between 2D, 3D and 4D, then we will clarify it you.

**2D**

This term describes the two-dimensional, that is; that which has only two dimensions. That which projects flat in the physical space (as well as the dolls of The Powerpuff Girls). For example, the photograph or drawing of a car is usually two-dimensional; because by means of the drawing only the length and the width can be seen and measured; but its depth cannot be known.

**3D**

On the other hand, the term 3D refers to three-dimensionality. That is, the way we perceive our reality. It is said that something is three-dimensional when it has three dimensions, either: length, width and depth.

Following the example of the car, the cars we see happen in our reality are three-dimensional; because we can measure each of the three dimensions mentioned above.

**4D**

From what we have said above, it is certainly not necessary to clarify what the term 4D refers to; because it clearly describes the fourth dimension.

The fourth dimension is an abstract concept, which derives from the generalization of the rules of three-dimensionality; adding the factor of time and movement. Thus, for example, a moving three-dimensional object is considered to have four dimensions. The 4D concept is very difficult to understand, since it is not something that can be grasped in visible reality.

**Key Differences between 2D, 3D and 4D**

- 2D = two dimensions, 3D = three dimensions and 4D = four dimensions.
- Two-dimensional objects (2D) are projected flat and their depth is not discernible. Three-dimensional objects are those whose width, depth and length are known. The four-dimensional objects are those to which in addition to being able to measure the elements that are measured to the three-dimensional, also the factor of time and the movement is added to them.
- 2D = plane, 3D = like real life and 4D = abstract concept.
- Examples of figures in 2D: square, triangle, circle.
- Examples of 3D figures: cylinder, sphere, cube, pyramid.
- 4D figure example: 4 polyhedra (composed of two dimensional polygons).