These two are different kinds of geometry. Basically, geometry is the study of different shapes. It is categorized broadly into two main categories: solid geometry (3D shapes) and plane geometry (2D shapes). We’ll talk about the distinction between 2D and 3D shapes in this article. But first, tell me a little bit more about each of these.

Due to the fact that it deals with all the flat forms that are easy to draw on paper, plane geometry is sometimes referred to as two-dimensional geometry. These figures include, but are not limited to, curves, lines, quadrilaterals, polygons, etc. In contrast, solid geometry, which deals with three-dimensional or solid shapes, is also referred to as three-dimensional geometry. Cones, cylinders, spheres, and other shapes are a few examples of these figures.

**What are 2D Shapes?**

We can say that shapes that can be made on a flat surface have two dimensions. In other words, the 2D shapes are the shapes that only have length and width.

What is a 2D shape, though? Before we can figure out what a 2D shape is, we need to know what a 0D object is. A 0D object has no dimensions. A point is what makes up a 0D shape.

**Applications**

In plans of an object, all parallel projections and one-point perspective projections are made in 2D. Even in oceanography, geological maps can be made in two dimensions using the contouring method to show depth with different shapes.

**Examples**

There are many various types of 2D shapes, some of which are shown below:

**What are 3D Shapes?**

Three-dimensional is what the word “3D” stands for. It means that the three-dimensional shapes have a total of three dimensions and take up space (along with area, like the 2D shapes). Many things around us, like bottles, books, Rubik’s cubes, balls, and so on, are 3D. The Z, Y, and Z axes can be used to represent a 2D object because they also occupy up volume.

**Applications**

These are used for many things, like 3D animations, 3D designs of buildings, bridges, tools, 3D graphs, maps, and so on. The 3D shapes help show how deep something is. In engineering, we use two- and three-point perspective projection and orthographic projection to show what 3D looks like.

**Examples**

Shapes like the sphere, cube, cone, cuboid, pyramid, and so on are all 3D shapes. The shapes are shown in the diagram below.

## Comparison Table (2D Vs 3D Shapes)

Parameters | 2D Shapes | 3D Shapes |

Full-Form | Has two-dimension e.g length and width | Has three dimensions e.g length, width, and height |

Number of Axis | Has two axis: x and y | Has three axis: x, y, and z |

Examples of Object | Circle, square, triangle, square, rectangle | Spheres, cubes, cuboids, pyramid |

Visibility of Edges | Two edges are visible | Most edges are not visible |

Easy of Drawing | It is easy to create | It is difficult to create |

**Key Differences Between 2D and 3D Shapes**

- 3D shapes have three dimensions, while 2D shapes only have two.
- 3D shapes have edges that can’t be seen, while 2D shapes have edges that can be seen.
- All living things, like ants, have 2D shapes, so they don’t have a sense of depth.
- The 3D design can be used for modeling, printing, and filming, but the 2D design can’t.
- 2D designs are good, but 3D designs are better.
- 3D designs give the viewer a real experience, which is not the case with 2D designs.
- 3D designs are cheap and give clear figures to the manufacturer.
- 3D shapes have three axes, while 2D shapes only have two.

**Similarities**

- Both 2D and 3D shapes have length.
- Both 2D and 3D shapes have width.

**FAQs**

**What are 3D and 2D shapes?**

A 2D shape has length and width as its two dimensions. Three dimensions make up a 3D shape: length, breadth, and height.

**What is difference between 2D and 3D?**

Using the horizontal and vertical (X and Y) axes, 2D is “flat,” meaning that there are only two dimensions to the image, which becomes a line when turned to the side. The depth (Z) dimension is added in 3D. This third dimension enables rotation and multi-perspective viewing.

**Is circle 2D or 3D?**

2D shapes are flat and contain only two dimensions, such as squares, rectangles, triangles, circles, pentagons, hexagons, octagons, nonagons, and decagons. They also include parallelograms, rhombuses, kites, quadrilaterals, and trapezoids. Three dimensions make up 3D objects.

**Is triangle a 3D shape?**

Rectangles, squares, circles, and triangles are examples of 2D shapes. 3D shapes such as spheres, pyramids, cuboids, and cubes.

**Conclusion**

You should now understand the main distinction between 2D and 3D shapes from the explanation above. Therefore, 2D shapes are simple flat shapes with only two dimensions—the x and y axes. In contrast, 3D shapes have three dimensions: x, y, and z. To put it another way, these shapes also include volume.