Notes – Lesson 1.4
Geometry
Name __________________________
Definitions:
 Segment: part of a _________________ consisting of _______ _______________________________.
Picture:

Symbol:
Ray: part of a _________________ consisting of ________ _____________________________ and all the points of
the line on one side of the ________________________.
Picture:

Symbol:
Opposite Rays: are ___________ ____________________________ _______________ with the same endpoint.
Opposite rays form a _____________________.
Picture:
Symbol:
Refer to the diagram at the right.
1.
Name
in another way.
2. How many different segments can be named?
3. Name a pair of opposite rays with E as an endpoint.
4. Name in two different ways the ray opposite
5. Name
6. Are
.
in two other ways.
and
the same segment?
Definitions:

Parallel Lines: are _____________________ ________________ that do not __________________________.

Skew Lines: are _________________________; therefore, they are not _____________________
and do not _____________________________.
Refer to the diagram at the right.
7. Name all segments parallel to
.
8. Name all segments parallel to
.
9. Name three pairs of skew lines.

Parallel Planes: planes that do not __________________________________.
Refer to the diagram at the right.
10. Which pair(s) of planes is (are) parallel?
11. Which pair(s) of planes intersect?
12. Which planes intersect in
13. Which planes intersect in
?
?