Download Answers for the lesson “Identify Pairs of Lines and Angles”

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Transcript 
Answers for the lesson “Identify Pairs
of Lines and Angles”
LESSON
3.1
Skill Practice
17. 1 line
1. transversal
m
A
2. No; the legs intersect the tabletop.
‹]›
‹]›
3. AB
4. BC
5. BF
6. plane ABF
7. MK , LS
8. PQ , PN
‹]›
‹]› ‹]›
B
‹]› ‹]›
18. corresponding
9. No. Sample answer: The
lines intersect.
19. consecutive interior
10. No. Sample answer: There is no
right angle symbol indicating they
are perpendicular.
20. consecutive interior
21. alternate exterior
22. alternate interior
11. Ž1 and Ž5, Ž3 and Ž7,
Ž2 and Ž6, Ž4 and Ž8
23. corresponding
12. Ž3 and Ž6, Ž4 and Ž5
Copyright © Houghton Mifflin Harcourt Publishing Company. All rights reserved.
C
24. always
P
13. Ž1 and Ž8, Ž2 and Ž7
m
14. Ž3 and Ž5, Ž4 and Ž6
15. Ž1 and Ž8 are not in
25. never
corresponding positions. Ž1 and
Ž8 are alternate exterior angles.
m
16. 1 line
A
C
m
P
B
Geometry
Answer Transparencies for Checking Homework
60
c. Ž5 and Ž12, Ž7 and Ž10
26. sometimes
n
t
r
p
H
m
or
d. Ž6 and Ž9, Ž8 and Ž11
P
X
27. sometimes
N
M
O
N
O
M
Q
Q
or
R
L
R
L
P
P
e. No; the rear leg is skew to the
transversal; it does not
intersect and is not parallel to
the transversal.
39. The adjacent interior angles are
supplementary, thus the measure
of the other two angles must
be 908.
40. true
41. false
42. true
43.
28. B
29. ŽCFJ, ŽHJG
m
P
n
30. ŽCJH
Copyright © Houghton Mifflin Harcourt Publishing Company. All rights reserved.
31. ŽDFC, ŽCJH
32. ŽGJH
44.
A
33. a. 808, 808
b. 708, 708
c. If parallel lines are cut by
B
a transversal then alternate
exterior angles are congruent.
Problem Solving
34. parallel
35. skew
36. Check students’ work.
37. A
38. a. Ž5 and Ž9, Ž6 and Ž10,
Ž7 and Ž11, Ž8 and Ž12
b. Ž6 and Ž11, Ž8 and Ž9
Geometry
Answer Transparencies for Checking Homework
61
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