Download Line Segment

Geometry
Lesson Objectives
2.C.1.a
Identify, describe and draw angles, parallel line
segments, and perpendicular line segments
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3.A.1.a Use technology tools, including software and
hardware, from a range of teacher-selected options to
learn a new content or reinforce skills
Lines in the real world.
Lines and Angles. ALERT Publishing, Inc.. 2005.
unitedstreaming. 25 June 2008
<http://streaming.discoveryeducation.com/>
Point

A point is an exact location in space.
.C
.A
.D
.E
.B
Line

A line is a set of points that form a
straight path that goes forever in both
directions.
Naming Lines
C
A
B
CD
AB
D
F
G
E
GH
EF
H
Line Segment

A line segment is a part of a line that
connects two endpoints.
Naming Line Segments
A
B
CD
C
AB
D
E
EF
F
G
H
GH
Ray

A ray is a part of a line that has one
endpoint and continues on in one
direction without end.
Naming Rays
A
B
C
D
CD
AB
E
I
F
J
H
FE
G
GH
JI
Open Figures

Figures that start and stop in different
places.
Closed Figures

They start and stop in the same place.
Open or Closed?
1.
4.
2.
5.
3.
6.
Parallel Lines

Lines that never cross.
A
B
C
D
E
G
F
H
AB
EF
CD
GH
Intersecting Lines

Lines that meet and cross at a point.
Perpendicular

Lines that cross and form a right (90°)
angle.
C
A
AB
B
CD
E
D
J
I
K
F
IL
L
JK
H
EG
G
FH