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Major Diameter of an Ellipse

The segment joining the vertices of an ellipse, or the length of that segment. The major diameter passes through the center and foci. It is an ellipse's longest diameter.

 

 

 

See also

Major axis of an ellipse, minor diameter of an ellipse

 


  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