I SCREWED UP AND TYPED OVER UNIT 2.4 REASONING WITH PROPERTIES
YOU MUST REDO THIS
UNIT 3: PERPENDICULAR AND PARALLEL LINES
3.1 - Lines and Angles
MA30: GEOMETRY
(Text Ref: Ch 3.1 Pg 129-134)
Relationship
Between Lines
Vocabulary
Parallel Lines
Skew Lines
Parallel Planes
I. Relationship Between Lines
A. Vocabulary
Parallel Lines –
Skew Lines –
Parallel Planes –
Identifying Relationships
in Space
Example #1
B. Identifying Relationships in Space (Example #1)
Think of each segment in the diagram as part of a line. Which
of the lines appear to fit the description?
a. parallel to AB
b. skew to AB
c. parallel to BC
d. Are planes ABE and CDE parallel?
Example #2
C. Identifying Relationships in Space (Example #2)
Think of each segment in the diagram as part of a line.
Fill in the blank with parallel, skew, or perpendicular.
a. DE and CF are ____________.
b. BE and AB are ____________.
c. AD, BE , and CF are ___________.
Example #3
d. Plane ABC and DEF are ____________.
D. Identifying Relationships in Space (Example #3)
Think of each segment in the diagram as part of a line.
a. Name a line perpendicular to HD.
b. Name a plane
parallel to DCH .
c. Name a line parallel to BC.
d. Name a line skew to FG.
3.1 - Lines and Angles (continued)
Angles Formed By
Transversals
Vocabulary
Transversal
Corresponding Angles
Alternate Interior Angles
II. Angles Formed By Transversals
A. Vocabulary
Transversal –
Corresponding Angles –
Alternate Interior Angles –
Alternate Exterior Angles
Consecutive Interior Angles
Alternate Exterior Angles –
Consecutive Interior Angles –
Identifying Angle
Relationships
Example #1
B. Identifying Angle Relationships (Example #1)
List all pairs of angles that fit the description.
a. corresponding angles
b. alternate interior angles
c. alternate exterior angles
d. consecutive interior
Example #2
C. Identifying Angle Relationships (Example #2)
Complete the statement with corresponding, alternate interior,
alternate exterior, or consecutive interior.
a. 4 and 8 are __________ angles.
b. 2 and 6 are __________ angles.
c. 1 and 8 are __________ angles.
d. 2 and 8 are __________ angles.
e. 4 and 5 are __________ angles.
f.
5 and 1 are __________ angles.