Download Angle Relationships

NAME
1-5
DATE
PERIOD
Angle Relationships
What You’ll Learn
Scan Lesson 1-5. List two headings you would use to make
an outline of this lesson.
1.
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____________________________________________________
2.
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Active Vocabulary
New Vocabulary Label the diagram with the correct terms.
Use each term once.
adjacent
linear pair
vertical
∠1 and ∠2 are
angles
and a
.
complementary
Copyright © Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
supplementary
perpendicular
w
Lines w and x are
.
∠4 and ∠5 are
1 5
and
angles
angles.
4
2 3
∠1 and ∠3 are
angles.
x
Vocabulary Link Perpendicular has a nonmathematical
meaning. Look up perpendicular in the dictionary. List at
least five examples of things that are perpendicular in
everyday life.
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Chapter 1
11
Glencoe Geometry
Lesson 1-5
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NAME
DATE
PERIOD
Lesson 1-5 (continued)
Main Idea
Pairs of Angles
pp. 46–48
Details
Summarize angle relationships by completing the
graphic organizer with the terms adjacent angles,
complementary angles, vertical angles, and
supplementary angles.
relationship due
to positioning
Special angle pairs
relationship due
to angle measures
⎯⎯ ⊥ BA
⎯⎯.
If m∠ABC = 2x + 12, find x so that BC
"
&
%
#
$
=
definition of perpendicular
=
Simplify.
Helping You Remember
Look up the nonmathematical meaning of
supplementary in a dictionary. How can this definition help you to remember the
meaning of supplementary angles?
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Chapter 1
12
Glencoe Geometry
Copyright © Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
Perpendicular Lines
pp. 48–50