# Difference between 2D, 3D and 4D

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).