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Worksheets

Finding Unknown Angles

Total questions: 45

Worksheet time: 11hrs 15mins

Name
Class
Date
1.
This is what kind of angle?
a)
obtuse
b)
right
c)
straight
d)
acute
2.
What type of angle is shown?
a)
acute
b)
obtuse
c)
right
d)
straight
3.
An angle whose measure is exactly 90 degrees.
a)
acute
b)
vertical
c)
right
d)
straight
4.

What is the measures of Angle A?

a)

50

b)

40

c)

30

d)

180

5.

What is the measure of Angle A?

a)

42

b)

51

c)

53

d)

52

6.

What is the measure of angle A?

a)

52

b)

32

c)

42

d)

43

7.

What is the measure of angle A?

a)

135

b)

125

c)

145

d)

134

8.

What is the measure of Angle A?

a)

107

b)

180

c)

112

d)

108

9.

What is the measure of Angle A?

a)

35

b)

34

c)

40

d)

44

10.

What is the measure of the unknown angle?

a)

80 degrees

b)

90 degrees

c)

100 degrees

d)

110 degrees

11.

What is the measure of the unknown angle?

a)

51 degrees

b)

52 degrees

c)

53 degrees

d)

54 degrees

12.

What is the measure of the unknown angle?

a)

106 degrees

b)

107 degrees

c)

108 degrees

d)

109 degrees

13.

What is the measure of the unknown angle?

a)

25 degrees

b)

29 degrees

c)

30 degrees

d)

35 degrees

14.

What is the measure of the unknown angle?

a)

49 degrees

b)

50 degrees

c)

51 degrees

d)

90 degrees

15.

What is the measure of the unknown angle?

a)

80 degrees

b)

81 degrees

c)

82 degrees

d)

83 degrees

16.

If you have a 180 degrees line and subtract 90 degrees what angle do you have?

a)

Acute

b)

Obtuse

c)

Right

d)

Straight

17.

If you have an acute angle with a degree of 25 and you add a right angle what degree angle do you have?

a)

110 degrees

b)

115 degrees

c)

120 degrees

d)

125 degrees

18.

If your clock says 3:00 what angle does that represent?

a)

acute

b)

obtuse

c)

right

d)

straight

19.

Which of the following measures is an example of acute angle?

a)

90o

b)

89o

c)

100o

d)

95o

20.

This is a/an (a)   angle.

21.
What is the measure of the missing angle?
a)
90
b)
110
c)
101
22.
Name this angle.
a)
acute
b)
right
c)
obtuse
d)
none of the above
23.
Name this angle.
a)
acute
b)
right
c)
obtuse
d)
none of the above
24.
Name this angle.
a)
acute
b)
right
c)
obtuse
d)
none of the above
25.

A diagram is shown. What is the sum of the angles?

a)

45°

b)

90°

c)

180°

d)

360°

26.

A diagram of 180° is shown. What is the measure of the unknown angle?

a)

60°

b)

90°

c)

150°

d)

210°

27.

A diagram is shown. What is the measure of the unknown angle?

a)

25°

b)

70°

c)

160°

d)

340°

28.

A diagram is shown. What is the measure of the unknown angle?

a)

30°

b)

45°

c)

60°

d)

70°

29.

What is the measure of the unknown angle?

a)

15°

b)

35°

c)

95°

d)

105°

30.

If the rays BA and BC are perpendicular, what is the measurement of the missing angle x below?

a)

65°

b)

75°

c)

85°

d)

90°

31.

Angle ABC, shown below, measures 110°. What is the measurement of the missing angle, y?

a)

45°

b)

50°

c)

60°

d)

65°

32.

What is teh total measurement of ∠ABC shown below?

a)

5°

b)

45°

c)

85°

d)

95°

33.

An oriel can rotate its head 180 degrees. If an oriel rotates its head 65 degrees, how much further can it turn its head?

a)

35°

b)

115°

c)

180°

d)

245°

34.

A Ferris wheel rotates 24 degrees each time it turns. How many degrees does it rotate in three turns?

a)

27°

b)

48°

c)

72°

d)

96°

35.

A standing fan can rotate a total of 150 degrees. if it has rotated 75 degrees, how much farther can it rotate?

a)

2°

b)

75°

c)

85°

d)

225°

36.

A standing fan rotates 45 degrees, then stops, and then rotates an additional 35 degrees. What is the total amount of degrees the fan rotated?

a)

70°

b)

75°

c)

80°

d)

85°

37.

A rolling ball bounces off a wall. The diagram below shows the path of the ball. What is the measure of the unknown angle?

a)

21°

b)

46°

c)

67°

d)

112°

38.

A diagram is shown. What is the measure of the missing angle?

a)

24°

b)

28°

c)

34°

d)

44°

39.

A diagram is shown. What is the measure of the missing angle?

a)

39°

b)

49°

c)

59°

d)

69°

40.

Angle 1 and angle 2 form a right angle. The measure of angle 1 is 32°. What is the measure of angle 2?

a)

32°

b)

90°

c)

58°

d)

62°

41.

Angle MLN has a measure of 41°. Angle NLP is a right angle. What is the measure of angle MLP?

a)

82°

b)

49°

c)

180°

d)

131°

42.
Find the value of ∠A.
a)
60 degrees
b)
30  degrees
c)
90 degrees
d)
120 degrees
43.
Find the value of ∠A.
a)
25 degrees
b)
30  degrees
c)
35 degrees
d)
90 degrees
44.
Find the value of x.
a)
18°
b)
28°
c)
38°
d)
118°
45.
a)

x = 118

b)

x = 108

c)

x = 28

d)

x = 58

e)

x = 62