1.4: Segments, Rays, Parallel Lines and Planes Flashcards
1
Q
Segment
A
Part of a line consisting of two endpoints and all points between them.
2
Q
Ray
A
Part of a line consisting of one endpoint and all the points of the line on one side of the endpoint.
3
Q
Opposite Ray
A
Two collinear rays with the same endpoint. Opposite rays always form a line.
4
Q
Parallel Lines
A
Coplanar lines that do not intersect.
5
Q
Skew Lines
A
Noncoplanar; therefore, they are not parallel and do not intersect.
6
Q
Parallel Planes
A
Planes that do not intersect.
