WorksheetsFinding Unknown Angles Measure
Total questions: 20
Worksheet time: 2hrs 40mins
Name
Class
Date
1.
What are complementary angles?
a)
Angles that add up to 180°
b)
Angles that add up to 90°
c)
Angles that are equal to each other
d)
Angles that are opposite of each other when lines intersect.
2.
What are supplementary angles?
a)
Angles that add up to 180°
b)
Angles that add up to 90°
c)
Angles that are equal to each other
d)
Angles that are opposite of each other when lines intersect
3.
What angle pair is pictured?
a)
Alternate Interior Angles
b)
Supplementary Angles
c)
Vertical Angles
d)
Corresponding Angles
4.
What is the measurement of a right angle?
a)
70
b)
80
c)
90
d)
180
5.
What do all of the angles of a triangle add up to?
a)
90°
b)
100°
c)
180°
d)
360°
6.
a)
x = 118
b)
x = 108
c)
x = 28
d)
x = 58
7.
Find the measure of the indicated angle.
a)
95
b)
85
c)
35
d)
45
8.
∠7 and ∠TPU are _______________
a)
Complementary and Adjacent
b)
Supplementary and Adjacent
c)
Adjacent
d)
Vertical
9.
What angle is vertical to angle 2?
a)
∠4
b)
∠1
c)
∠2
d)
∠5
10.
What angle is adjacent and supplementary to angle 5?
a)
∠4
b)
∠1
c)
∠3
d)
∠2
11.
What is the measure of <PRS?
a)
168 degrees
b)
12 degrees
c)
180 degrees
d)
2 degrees
12.
Find the value of ∠A.
a)
20 degrees
b)
90 degrees
c)
110 degrees
d)
180 degrees
13.
Tell whether the angles are complementary or supplementary. Then find the value of x.
a)
Complementary; x=25
b)
Complementary; x=5
c)
Supplementary; x=25
d)
Supplementary; x=5
14.
What is the value of x?
a)
15
b)
16
c)
18
d)
19
15.
These angles are...
a)
Complementary
b)
Supplementary
c)
Neither
16.
These angles are...
a)
Complementary
b)
Supplementary
c)
Neither
17.
What is the value of x?
a)
90
b)
45
c)
180
d)
51
18.
Which are pairs of vertical angles?
a)
∠COB & ∠COA
b)
∠AOD & ∠AOC
c)
∠COB & ∠AOD
d)
∠BOD & ∠AOD
19.
What is the value of x?
a)
37
b)
72
c)
108
d)
18
20.
What is the relationship between angle 1 and 2?
a)
Supplementary
b)
Complementary
c)
Vertical
d)
Obtuse
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