wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

Angles & Angle Relationships

Total questions: 20

Worksheet time: 47mins

Name
Class
Date
1.
Name this angle.
a)
acute
b)
right
c)
obtuse
d)
none of the above
2.
Acute angle - an angle that is ______ a 90 degree angle.
a)
more than
b)
less than
c)
equal to
d)
none of the above
3.
Name this angle.
a)
acute
b)
right
c)
obtuse
d)
none of the above
4.
Obtuse angle - an angle that is _______ a 90 degree angle.
a)
more than
b)
less than
c)
equal to
d)
none of the above
5.
What type of angle is this? 
a)
acute
b)
obtuse
c)
right
6.
Name this angle.
a)
acute
b)
right
c)
obtuse
d)
none of the above
7.

A straight angle has a measure of (a)   degrees.

8.
What is the value of x?
a)
37
b)
72
c)
108
d)
18
9.
Find the missing angle.  Find x.
a)
20o
b)
70o
c)
160o
d)
180o
10.
What are vertical angles?
a)
Angles that are adjacent to each other
b)
Angles that add up to 180°
c)
Angles that are opposite of each other when lines intersect
d)
Angles that add up to 90°
11.

Vertical angles are always

a)

90 degrees

b)

180 degrees

c)

congruent

d)

adjacent

12.

Name the angle relationship shown.

a)

Adjacent

b)

Vertical

c)

Complementary

d)

Supplementary

e)

No relationship

13.

∠1 and ∠2 are _____________

a)

Complementary

b)

Supplementary

c)

Adjacent

d)

Vertical

e)

Not related

14.
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.
15.
Are these angles an example of complementary, supplementary, or neither?
a)
Complementary
b)
Supplementary
c)
Neither
16.
These angles are...
a)
Complementary
b)
Supplementary
c)
Neither
17.
Are these angles an example of complementary, supplementary, or neither?
a)
Complementary
b)
Supplementary
c)
Neither
18.
Find the missing angle.
a)
60
b)
70
c)
50
d)
140
19.
If ∠C and ∠D are supplementary, and the measure of ∠D is 45°, what is the measure of ∠C?
a)
135
b)
45
c)
125
d)
90
20.

Two (or three, or more) angles whose measures add to equal 180 degrees are __________________ angles.

a)

Adjacent

b)

Complementary

c)

Supplementary

d)

Vertical