Who remembers which angles and sides are congruent if

1
Who remembers which angles and sides are
congruent if
2
Name the three angles and sides are congruent if
3
What information about the triangles is shown in
the drawings?
4
C
B
A
D
1
5
F
G
E
H
I
2
6
J
L
M
I
K
N
3
7
P
O
S
Q
T
R
4
8
Section 4.3 Ways to justify congruent triangles.
http//nlvm.usu.edu/en/nav/frames_asid_165_g_1_t_3
.html
9
Identify the Following Congruencies as

• SSS
• SAS
• ASA

• AAS
• HL
• None

10
C
B
A
D
1
11
F
G
E
H
I
2
12
J
L
M
I
K
N
3
13
P
O
S
Q
T
R
4
14
5
15
6
16
7
17
8
18
9
19
10
20
11
21
12
22
13
23
14
24
15
25
16
26
17
27
18
28
19
29
20
30
21
31
22
32
23
33
24
34
25
35
26
36
27
37
28
38
29
39
30
40

• Worksheet answers
• SSS 2. AAS 3. None
• SAS 5. AAS 6. SAS 7. SAS
• None 9. ASA 10. SSS 11. AAS or HL
• 12. ASA 13. HL 14. None 15. SAS or ASA

• None 17. None 18. AAS 19. None
• ASA 21. HL 22. HL 23. None
• ASA 25. AAS 26. ASA 27. AAS or HL
• 28. HL 29. ASA 30. HL

41

• Page 170-171 1 18, Section 5.5
• ASA 2. SSS 3. SAS
• None 5. SSS or SAS 6. None
• SSS 8. SAS 9. SAS
• SSS or SAS or HL 11. None 12. ASA
• ASA 14. SAS 15. SAS
• 16. ASA 17. None 18. None

• Page 185-86 1-11, Section 5.8
• SAS 2. AAS 3. AAS 4. SAS
• SSS 6. HL 7. HL 8. None
• 9. ASA 10. HL 11. AAS

42
Two mathematicians, Mr. Gauss and Mr. Newton, are
walking down the street. Here is a portion of
their conversation. N How many children do you
have? G Three N How old are they? G The
product of their ages is 36. N That doesnt tell
me how old they are. G The sum of their ages is
the same as the house number on that house you
see across the street. N It is still
impossible for me to tell their ages. G The
eldest is visiting her grandmother. N Ah, now I
know how old they are. How old are Gauss three
children?
43
Section 5.6 Proving triangles are
congruent. What are the five ways we can tell if
triangles are congruent? http//regentsprep.org/
Regents/mathb/1b/Reccontri.htm
44
Proof A B
45
http//www.chatham.edu/PTI/ProofinMathematics/proo
f_curriculum.htm A man is camped at the foot of
a mountain, at dawn he breaks camp and begins
hiking up the mountain. He reaches the peak of
the mountain at sunset and camps out for the
night at the summit. At sunrise on the next day
he breaks camp and begins hiking down the
mountain using the same path he took on the way
up. He reaches his original camp at sunset. Is
there necessarily a point on the path at which
the man arrives at the same time of day on both
days? Why or why not? http//www.emunix.emich.edu
/kkustron/306/logic.ppt
46

• Practice 29 Answers
• SAS 2. ASA 3. SAS or ASA
• ASA 5. SSS 6. None
• SAS 8. None 9. SSS
• None 11. SSS 12. ASA
• 13. ASA 14. None 15. SAS

• Practice 32 Answers
• ASA 2. AAS 3. None
• HL 5. AAS 6. None
• 7.ASA 8. HL 9. SSS
• AAS 11. HL 12. AAS
• 13. AAS 14. None 15. HL

47

• Worksheet answers
• SSS 2. AAS 3. None
• SAS 5. AAS 6. SAS 7. SAS
• None 9. ASA 10. SSS 11. AAS or HL
• 12. ASA 13. HL 14. None 15. SAS or ASA

• None 17. None 18. AAS 19. None
• ASA 21. HL 22. HL 23. None
• ASA 25. AAS 26. ASA 27. AAS or HL
• 28. HL 29. ASA 30. HL

48

• Agenda.
• What are the five ways to verify congruent
  triangles?
• If ?MAX? ?WIL, what do you know?
• Hand back short quiz from Friday.
• Practice 30
• Practice 31
• HW

49
Practice 30 1
50
Practice 30 2
51
Practice 30 3
52
Practice 30 4
53
Practice 30 5
54
Practice 30 6
55
Practice 30 7
56
Practice 30 8
57

• Agenda
• Put problems from practice 31 on the board.
• Quiz Wednesday on proving congruent triangles and
• CPCTC

58
Practice 31
59
(No Transcript)
60
(No Transcript)
61
(No Transcript)
62
(No Transcript)
63
(No Transcript)
64
(No Transcript)
65
(No Transcript)
66
(No Transcript)
67
(No Transcript)
68
(No Transcript)
69
(No Transcript)
70
(No Transcript)
71
(No Transcript)
72
(No Transcript)
73

• SSS

74

• SSS

75

• SSS

76

• SSS

77

• SSS

78

• SSS

79

• SAS

80

• SAS

81

• SAS

82

• SAS

83

• SAS

84

• SAS

85

• ASA

86

• ASA

87

• ASA

88

• ASA

89

• ASA

90

• ASA

91

• AAS

92

• AAS

93

• AAS

94

• AAS

95

• AAS

96

• AAS

97

• HL

98

• HL

99

• HL

100

• HL

101

• HL

102

• HL

103

• NONE

104

• NONE

105

• NONE

106

• NONE

107

• NONE

108

• NONE

109
(No Transcript)