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Warm Up

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3-1 Lines and Angles Warm Up Lesson Presentation Lesson Quiz Holt Geometry Warm Up Identify each of the following. 1. points that lie in the same plane 2. two angles ... – PowerPoint PPT presentation

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Title: Warm Up


1
Warm Up
Lesson Presentation
Lesson Quiz
2
  • Warm Up
  • Identify each of the following.
  • 1. points that lie in the same plane
  • 2. two angles whose sum is 180
  • 3. the intersection of two distinct intersecting
    lines
  • 4. a pair of adjacent angles whose non-common
    sides are opposite rays

coplanar points
supplementary angles
point
linear pair
3
Objectives
Identify parallel, perpendicular, and skew lines.
Identify the angles formed by two lines and a
transversal.
4
Vocabulary
parallel lines perpendicular lines skew
lines parallel planes transversal corresponding
angles alternate interior angles alternate
exterior angles same-side interior angles
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Example 1 Identifying Types of Lines and Planes
Identify each of the following.
A. a pair of parallel segments
B. a pair of skew segments
C. a pair of perpendicular segments
D. a pair of parallel planes
plane NMR plane KLQ
8
Check It Out! Example 1
Identify each of the following.
a. a pair of parallel segments
b. a pair of skew segments
c. a pair of perpendicular segments
d. a pair of parallel planes
plane FJH plane BCD
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Example 2 Classifying Pairs of Angles
Give an example of each angle pair.
A. corresponding angles
?1 and ?5
B. alternate interior angles
?3 and ?5
C. alternate exterior angles
?1 and ?7
D. same-side interior angles
?3 and ?6
11
Check It Out! Example 2
Give an example of each angle pair.
A. corresponding angles
?1 and ?3
B. alternate interior angles
?2 and ?7
C. alternate exterior angles
?1 and ?8
D. same-side interior angles
?2 and ?3
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Example 3 Identifying Angle Pairs and
Transversals
Identify the transversal and classify each angle
pair.
A. ?1 and ?3
transversal l corr. ?s
B. ?2 and ?6
transversal n alt. int ?s
C. ?4 and ?6
transversal m alt. ext ?s
14
Check It Out! Example 3
Identify the transversal and classify the angle
pair ?2 and ?5 in the diagram.
transversal n same-side int. ?s.
15
Lesson Quiz Part I
Identify each of the following.
1. a pair of parallel segments
2. a pair of skew segments
3. a pair of perpendicular segments
4. a pair of parallel planes
ABC and EFG
16
Lesson Quiz Part II
Identify each of the following.
5. one pair alternate interior angles
?EHG and ?HGK
6. One pair corresponding angles
?EHG and ?FGJ
7. one pair alternate exterior angles
?IHE and ?JGK
8. one pair same-side interior angles
?EHG and ?HGF
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