geometry 1.5 angle pairs
4
1
3
2

b.  complementary angles

c.  supplementary angles

∡1 and ∡2  are                 angles

∡2 and ∡4 are                 angles

a.  vertical angles

 

M
N
O
P

Are O, N, and P collinear, If so,

name the line on which they lie.

Yes, they lie on the line MP.

Yes, they lie on the line NP.

Yes, they lie on the line MO.

 No, the three points are not

collinear.

x+32
5x-24
Given the following intersecting lines and
the expressions for the angle measures. 
find the value of x.
 x=14

x=1

x=6

x=12

1
2
125
Given the following diagram of intersecting
lines and the angle measure, find ∡1 & ∡2
m∡1 =
m∡2 =
80
Given the following diagram, Find the measure
of the angles below.
20
3
1
2
m∡1 =
m∡2 =
m∡3 =
A
(3x + 31)
O
(2x - 6)
C
∡AOC =
∡BOC =
B
x =
Find the value
of x. Then find
the missing 
angle measures.
Identify the angles pairs as Adjacent, Not Adjacent,Linear Pair, or Complementary.
adjacent
?
110
linear pair
?
35
70
95
37
complementary
?
not adjacent
?
72
18
33
The measure of angle 1 = 57.4o find the
measure of...
its complement = 
its supplement = 
The measure of angle 1 = 83.7o find themeasure of...
its complement = 
its supplement = 
Angles 1 and 2 are supplementary use the info below to find their angle measure. 
m∡1 = 4x + 8   and    m∡2 = 6x - 13
x = 
m∡1 = 
m∡2 = 
Vertical angles are _______.
vertical
congruent
complementary
supplementary
Linear pairs are _________ and ______________.
vertical and complementary
congruent and supplementary
adjacent and complementary
adjacent and supplementary
x = 
(2x - 20)o
70
?
Solve for x.
120o
Solve for x.
x = 92
x = 42
(x + 23)o
65o
x = 2
x = 188
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