Points, lines, planes, and intersections

Points A, B, C, and D are collinear. In how many ways can the line be named using only these points?
1. 4
2. 12
3. 8
4. 16
If a plane contains one point of a line, then it must contain the entire line.
1. True
2. False
The intersection of two planes is _____ a line
1. sometimes
2. always
3. never
The intersection of two lines ____ is a ray. (Always, Sometimes, Never)
If 6 lines are in a single plane and we look at the intersection points, can these create an octagon?
1. Yes
2. No
Points R and T are endpoints on a segment of a line, and point S is in the middle. What two line segments make up the length of the segment RT?
1. RS and ST
2. RT and RS
3. TS and TR
A ray contains no end points. (True or False)
The intersection of two segments ____ is a segment.
1. Always
2. Sometimes
3. Never