exterior angle


Definition of exterior angle

  1. 1 :  the angle between a side of a polygon and an extended adjacent side

  2. 2 :  an angle formed by a transversal as it cuts one of two lines and situated on the outside of the line

Illustration of exterior angle


First Known Use of exterior angle


Seen and Heard

What made you want to look up exterior angle? Please tell us where you read or heard it (including the quote, if possible).