In exercises 1-8, use the diagram.
1. give two other names for ab.
2. name three points that are collinear.
3. give another name for plane f.
4. name a point that is not coplanar with a, b, and e.
5. give another name for cd.
6. name three rays with endpoint b.
7. name a pair of opposite rays.
8. give another name for cd.