1.4:segments and rays;paralell lines and planes Flashcards
1
Q
segment
A
the part of a line consisting of two endpoints and all points between them.
2
Q
ray
A
the part of a line consisting of one endpoint and all the points of the line on one side of the endpoint.
3
Q
opposite rays
A
two collinear rays with the same endpoint.
4
Q
parallel lines
A
coplanar lines that do not intersect.
5
Q
skew lines
A
not parallel and do not intersect.
6
Q
parallel planes
A
planes that do not intersect.
