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Initial Side of an Angle

The ray where measurement of an angle starts.

 

 

 

See also

Angle, terminal side of an angle, side of a polygon

 


   this page updated 29-jul-08
Mathwords: Terms and Formulas from Algebra I to Calculus
written, illustrated, and webmastered by Bruce Simmons
Featured in NCTM Web Bytes NCTM Web Bytes December 2004 Web Bytes March 2005 Web Bytes