Warm up – Nov. 1
List all pairs of angles that fit the description.
a. Corresponding
b. Alternate Interior
c. Alternate Exterior
d. Consecutive Interior
12
34
56
78
t
HIDDEN MESSAGE
MAN . BOARD
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Corresponding
12
34
56
78
t
4 and 2 3 and 15 and 76 and 8
Alternate Interior
3 and 72 and 6
12
34
56
78
t
Alternate Exterior
5 and 14 and 8
12
34
56
78
t
Consecutive Interior
3 and 26 and 7 1
23
45
67
8t
Find all angle measures
1 67
3
t
113
180 - 67
2
5
6 7
8
67
67
67
113
113
113
CHAPTER 3LINES AND ANGLESPart II: Equations
Alternate Exterior Angles
• Name the angle relationship
• Are they congruent or supplementary?
• Find the value of x
125
t
5x
5x = 125
5 5x = 25
Corresponding Angles
• Name the angle relationship
• Are they congruent or supplementary?
• Find the value of x
2x + 1
t
151
2x = 150
2 2x = 75
2x + 1 = 151- 1 - 1
Consecutive Interior Angles
• Name the angle relationship
• Are they congruent or supplementary?
• Find the value of x
81
t
7x + 15
supp
7x = 847 7x = 12
7x + 96 = 180 - 96 - 96
7x + 15 + 81 = 180
Alternate Interior Angles
• Name the angle relationship
• Are they congruent or supplementary?
• Find the value of x
3x
t
2x + 20
20 = x
2x + 20 = 3x- 2x - 2x
Homework
P. 147 #18 – 26
and
HANDOUT
All HW due THURSDAY
QUIZ ON THURSDAY