Download congruent supplementary

congruent
supplementary
1.2
1.2 Parallel
Parallel Lines
Lines and
and Transversals
Transversals
Identify interior, exterior, and transversal
M
L
SA
ER
SV
AN
TR
S
EXTERIORQ
O
INTERIOR
N
P
T
R
EXTERIOR
Vocabulary
Transversal: a line that intersects two parallel lines
Interior Angles: Formed on the inside of two lines cut
by a transversal
Exterior Angles: Formed on the outside of two lines cut
by a transversal.
Vocabulary
Alternate interior angles: interior angles on opposite
sides of the transversal-not adjacent
Alternate exterior angles: exterior angles on opposite
sides of the transversal-not adjacent
Corresponding Angles: One interior and one exterior
angle formed on the same side of the transversal
Label alternate interior, alternate exterior,
corresponding , vertical, supplementary angles
S
M
Q
O
N
corresponding
alternate interior
R
P
T
alternate exterior
supplementary
vertical
Explore lines and angles
Interior, exterior and alternate angles
Interior angles
Exterior angles
Alternate angles
ent.
Identify the alternate interior angles
uent.
Identify the alternate exterior angles
Corresponding and vertical angles
Identify a corresponding angle to angle 2
Identify a vertical angle to angle 8
2
8
de
ry
Adjacent angles
Identify an adjacent angle to angle 3
Identify an angle which is supplementary to angle 5
3
5
Classify these pairs of angles
E
B
A
G
C
D
H
EGB
&
GHD
?
C
CHF
&
EGB
AE
?
EGA
&
EGB
?
A
BGH
&
GHC
?
AI
GHC
&
DHF
?
V
EGA
&
AGH
?
A
F
AI
Alternate interior
AE Alternate exterior
C
A
Corresponding
Adjacent
V
Vertical
Practice
Find the measure of
the missing angles.
63o
Practice
Find the measure of
the missing angles.
135o
Practice
Find the measure of
the missing angles.
(The interior is a parallelogram!)
102o
102o
78o
Practice
Find the measure of
the missing angles.
a
c
128o
i
j
f
86o
d
b
e
g
h
k
l
Practice
Find the measure of
the missing angles.
a
b
d
c 59o
f g
e
i
k l
p q
h
j
43o
m
r
n
s
http://www.ixl.com/math/grade-7/transversal-of-parallel-lines
http://www.ixl.com/math/grade-7/find-missing-angles-in-triangles-and-quadrilaterals