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1.3 Geometry

Segments, rays, Parallel Lines and Planes

Segment is the part of a line consisting of two endpoints and all points between them
Ray is the part of a line consisting of one endpoint and all points of the line on one side of the endpoints.
Opposite rays are two collinear rays with the same endpoint. They always form a line.
Parallel lines are coplanar lines that do not intersect.
Skew lines are noncolplanar: therefore they are not parallel and do not intersect.
Parallel planes are planes that do not intersect.
Created by: sbowman