What are Dimensions?

Dimensions in mathematics are the measure of the dimension or street of an object or region or room in one direction. In less complicated terms, the is the measure up of the length, width, and also height the anything.

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Any object or next site or space can be

One-dimensional (or 1D)

Two-dimensional ( or 2D)

Three-dimensional (or 3D)

For example,


Zero Dimensional

A allude is a zero-dimensional object as it has no length, broad or height. It has no size. The tells around the place only.

One Dimensional

A heat segment drawn on a surface is a one-dimensional object, as it has only length and also no width.


Two Dimensional

The 2-dimensional shapes or objects in geometry space flat plane figures that have two dimensions – length and also width. Two-dimensional or 2-D shapes execute not have any type of thickness and can it is in measured in only two faces.

A square, circle, rectangle, and triangle are examples of two-dimensional objects. We have the right to classify numbers on the basis of the dimensions they have.


Three dimensional

In geometry, three-dimensional forms are solid figures or objects or forms that have actually three size – length, width, and height. Uneven two-dimensional shapes, three-dimensional shapes have actually thickness or depth.

A cube and also cuboid are instances of three-dimensional objects, together they have length, width, and also height.

Take for instance a cuboid,


The features of the cuboid space faces, edges, and vertices. The three dimensions compose the edges of a 3D geometric shape.

Some examples of three-dimensional shapes:

3-D shapesExamples


Rubric cube













Rectangular prism and cuboid





Every three-dimensional number houses plenty of two-dimensional figures. We have the right to by involvement together countless two-dimensional figures we obtain a three-dimensional figure.


Fun fact

We have the right to have an ext than three dimensions in mathematics, however it will certainly be difficult to draw on paper.

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Let’s do

Identify two-dimensional forms within the three-dimensional shapes offered below.