Warm Up
2/4/13
 Solve each equation
1) 5x + 6 – x – 8 = 42
3)
x +3
=7
2
2) 2(x + 5) = 14
Unit 2 Day 2 – Segments, Rays,
Parallel Lines and Planes
Line Segment
 Definition: A segment is a part of a line consisting of
two endpoints and all points in between
 Names:
AB or BA
Ray
 Definition: A ray is a part of a line consisting of one
endpoint and all the points of the line on one side of
the endpoint.
Opposite Rays
Name three segments.
Name four different rays.
Name two opposite rays.
What are Parallel Lines?
Are you sure you have the correct definition?
Definition: Parallel Lines are coplanar lines that do not
intersect
What other type of lines do not intersect????
Skew Lines
Definition: Skew Lines are noncoplanar lines that do not
intersect
Are there any in the classroom?
Name the segments
parallel to:
AB
EH
DC
Name a pair of skew
lines.
Parallel Planes
Definition: Parallel Planes are planes that do not
intersect
Name a pair of parallel planes.
Homework
 1-3 Segments, Rays, Parallel Lines and
Planes Worksheet
 Quiz Thursday!