Collinear Definition (Illustrated Mathematics Dictionary) - Math Is Fun

Math is Fun ABCDEFGHIJKLMNOPQRSTUVWXYZ Definition of Collinear

When three or more points lie on a straight line.

(Two points are always in a line.)

These points are all collinear (try moving them):

../geometry/images/geom-line.js?mode=collinear See: Line, Point, Coplanar Copyright © 2025 Rod Pierce

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