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Dimensions

On the most basic level, this term refers to the measurements describing the size of an object. For example, length and width are the dimensions of a rectangle.

In a more advanced sense, the number of dimensions a set, region, object, or space possesses indicates how many mutually perpendicular directions of movement are possible. For example, a line is one dimensional, a plane is two dimensional, the space in which we live is three dimensional, and a point is zero dimensional.

 

 

See also

n dimensions

 


  this page updated 21-feb-16
Mathwords: Terms and Formulas from Algebra I to Calculus
written, illustrated, and webmastered by Bruce Simmons
NCTM Web Bytes December 2004 Web Bytes March 2005 Web Bytes