Download Parallel Lines and Transversals

NAME
DATE
3-1
PERIOD
Parallel Lines and Transversals
What You’ll Learn
Skim the Examples for Lesson 3-1. Predict two things you
think you will learn about parallel lines and transversals.
1.
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2.
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Active Vocabulary
parallel lines
Copyright © Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
transversal
New Vocabulary Use the figure to complete each statement.
t
t is a
∠ 2 and ∠ 6 are
exterior angles
∠ 4 and ∠ 5 are
a and b are
.
5
.
4
6
7 8
2
a
b
.
.
alternative interior angles
∠ 4 and ∠ 6 are
alternate exterior angles
∠ 2 and ∠ 7 are
corresponding angles
3
∠ 1 and ∠ 7 are
interior angles
consecutive interior
angles
1
.
∠ 5 and ∠ 6 are
.
.
.
Vocabulary Link Skew is a word used in everyday English as
well as in mathematics. Look up skew in the dictionary.
Explain how the English definition can help you remember
how skew is used in mathematics.
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Chapter 3
41
Glencoe Geometry
Lesson 3-1
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NAME
DATE
PERIOD
Lesson 3-1 (continued)
Main Idea
Relationships Between
Lines and Planes
pp. 171–172
Details
Summarize information about parallel lines and skew
lines in the graphic organizer below.
What are
parallel
lines?
How are parallel
lines and skew
lines similar?
Parallel
Lines
How are parallel
lines and skew
lines different?
Skew
Lines
What are
skew lines?
Model a transversal t which intersects two or more
parallel lines. Identify consecutive interior angles,
alternative interior and exterior angles, and
corresponding angles.
Helping You Remember
Look up meaning of the prefix trans- in the
dictionary. Write down 4 words that have trans- as a prefix. How can the meaning of the
prefix help you remember the meaning of transversal?
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Chapter 3
42
Glencoe Geometry
Copyright © Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
Transversal Angle Pair
Relationships
pp. 172–173