Line (geometry)

one-dimensional infinite non-curved geometric object

part of a line that is bounded by two distinct end points; line with two endpoints

picture of a graduated straight line that serves as abstraction for real numbers; coordinate system in one-dimensional space

line with one endpoint

thumb|Drawing of a zigzag thumb|A road in Akiruno, Tokyo|Akiruno, [[Japan designed with switchbacks]] thumb|right|A seismograph showing zigzag lines A zigzag is a pattern like a row of Ws joined together, consisting of a single line made up of line segments of usually constant length joined by usually constant angles in alternating directions.

lines in 3D that do not intersect and neither do they point the same direction

prociple directions in aviation

imaginary line around which a rotation occurs

in geometry, multiple lines or curves intersecting at a single point

geometric representation of a force on an object