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Geometry
Notes 1.4
Type of  Pair
Adjacent  s
Linear Pair
Vertical  s
Complementary  s
Supplementary  s
Geometer: ___________________
Description
Diagram
Examples!!!
1.
For a-d, tell whether the angles are only adjacent, adjacent and form a linear pair, or not adjacent.
a)
1 and 2
b)
5 and 6
c)
3 and 4
A
2
B
d)
3 and 7
e)
Name a pair of vertical angles.
1
Name a pair of supplementary angles.
g)
Name a pair of complementary angles.
2.
Find the measure of each of the following.
a)
complement of  G
4
7 C
3
G
C
b)
supplement of  G
T
c)
complement of  C
2x+3
d)
supplement of  C
3.
Name all the vertical angles.
M
L
N
K
5
6
E
f)
J
F
D
mHGI = 38
P
H
I
4.
An angle is 10° more than 3 times the measure of its complement. Find the measure of the
complement.
5.
An angle’s measure is 12° more than ½ the measure of its supplement. Find the measure of the
angle.
6.
 DEF and  FEG are supplementary. m DEF = (9x + 1)°, and m FEG = (8x+ 9)°. Find the
measures of both angles.
7.
 DEF and  FEG are complementary. m DEF = (3x - 4)°, and m FEG = (5x + 6)°. Find the
measures of both angles.
Assignment: pp31-33 (2-9, 11, 13, 23, 26, 27, 30, 34-42, 50, 51, 54)