Sticky Dialog Bar | Support | GIS Dictionary

A to Z GIS | Explore this related guide, featuring updated terms and graphics and developed in coordination with Esri’s GIS Dictionary team.

Learn more about A to Z GIS

GIS Dictionary

Browse dictionary

radian

URL copied Share URL
  1. [geometry] A unit of angle measurement where one radian equals the angle subtended at the center of a circle by an arc equal in length to the radius, approximately 57 degrees, 17 minutes, and 44.6 seconds. There are 2π radians in one complete rotation.

    Media/radian.gif

See also