Cube (Geometry)

Pronunciation: /kjub/ Explain
Click on the blue point and drag it to change the figure.

Manipulative 1 - Rotating Cube Created with GeoGebra.

A cube is a 3-dimensional geometric figure with straight edges that are all the same length. The faces of a cube are all congruent squares.

Formulas for a Cube
VolumeV = s3
Surface areaS = 6s2

Make a Cube

net for a cube.
Figure 2: Net for a cube.

A cube may be made using a net - a flat shape that can be folded into a cube. Click here to see a printable net for a cube with instructions.

Cubes in Nature

Salt crystal cubes magnified 100x.
Figure 3: Salt Crystals.

Ordinary table salt crystals forms naturally into cubes. Figure 3 shows salt crystals magnified 100 times. Figure 4 is a diagram of a salt crystal.

Diagram showing atoms in a salt crystal.
Figure 4: Salt Crystal Diagram.


  1. McAdams, David E.. All Math Words Dictionary, cube. 2nd Classroom edition 20150108-4799968. pg 51. Life is a Story Problem LLC. January 8, 2015. Buy the book

Cite this article as:

McAdams, David E. Cube (Geometry). 4/16/2019. All Math Words Encyclopedia. Life is a Story Problem LLC.

Image Credits

Revision History

4/16/2019: Updated equations and expressions to new format. (McAdams, David E.)
12/21/2018: Reviewed and corrected IPA pronunication. (McAdams, David E.)
6/25/2018: Removed broken links, updated license, implemented new markup, updated GeoGebra apps. (McAdams, David E.)
1/22/2010: Added "References". (McAdams, David E.)
12/3/2008: Added text about faces of a cube. (McAdams, David E.)
10/27/2008: Changed manipulative to geogebra. (McAdams, David E.)
4/30/2008: Initial version. (McAdams, David E.)

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