Free Printable Angle Basics Practice

1.

Classify each angle as acute, obtuse, right, or straight.

a)

Acute < 90

b)

obtuse > 90

c)

right = 90

d)

straight = 180

2.

Classify each angle as acute, obtuse, right, or straight.

a)

Acute < 90

b)

obtuse > 90

c)

right = 90

d)

straight = 180

3.

Classify each angle as acute, obtuse, right, or straight.

a)

Acute < 90

b)

obtuse > 90

c)

right = 90

d)

straight = 180

4.

Classify each angle as acute, obtuse, right, or straight.

a)

Acute < 90

b)

obtuse > 90

c)

right = 90

d)

straight = 180

5.

∠DCE is what type of angle?

a)

Acute

b)

Right

c)

Obtuse

d)

Straight

6.

∠ECA is what type of angle?

a)

Acute

b)

Right

c)

Obtuse

d)

Straight

7.

∠ACD is what type of angle?

a)

Acute

b)

Right

c)

Obtuse

d)

Straight

8.

∠ACB is what type of angle?

a)

Acute

b)

Right

c)

Obtuse

d)

Straight

9.

These two angles are complementary. Solve for x

a)

37

b)

43

c)

47

d)

57

10.

These two angles are supplementary. Solve for x

a)

28

b)

38

c)

48

d)

71

11.

What are supplementary angles?

a)

2 Angles that add up to 180°

b)

2 Angles that add up to 90°

c)

2 Angles that are equal to each other

d)

2 Angles that are opposite of each other when lines intersect

12.

What are complementary angles?

a)

2 Angles that add up to 180°

b)

2 Angles that add up to 90°

c)

2 Angles that are equal to each other

d)

2 Angles that are opposite of each other when lines intersect.

13.

Lines m and n are...

a)

parallel

b)

perpendicular

c)

intersecting

14.

Lines A and B are...

a)

parallel

b)

perpendicular

c)

intersecting

15.

Which is NOT a correct way to name the angle below?

a)

\angle B

b)

$\angle ABC$

c)

$\angle CBA$

d)

$\angle CAB$

16.

Which is NOT a correct way to name the angle below?

a)

\angle POQ

b)

$\angle P$

c)

$\angle OPQ$

d)

$\angle QPO$

17.

These two angles are ____________

a)

Adjacent angles

b)

Linear Pair

c)

Vertical angles

d)

Supplementary angles

e)

Complementary angles

18.

What type of angles are these?

a)

Adjacent Angles

b)

Linear Pair

c)

Complementary Angles

d)

Supplementary Angles

e)

Vertical Angles

19.

Which angles are vertical angles?

a)

$\angle8\ \ and\ \angle7$

b)

$\angle8\ and\ \angle6$

c)

$\angle8\ and\ \angle5$

20.

Which angle is a linear pair with $\angle1$ ?

a)

$\angle2$

b)

$\angle3$

c)

$\angle4$

d)

$\angle5$

e)

$\angle6$

21.

Which angles are non-adjacent with $\angle8$ ?
(mark all that apply)

a)

$\angle2$

b)

$\angle3$

c)

$\angle4$

d)

$\angle5$

e)

$\angle1$

22.

Which angle is a vertical angle to with $\angle7$ ?

a)

$\angle1$

b)

$\angle5$

c)

$\angle3$

d)

$\angle6$

e)

$\angle9$

23.

These angles are supplementary angles. Find x

a)

x = 118

b)

x = 108

c)

x = 28

d)

x = 58

e)

x = 62

24.

Find the missing angle. Find x.

a)

20^o

b)

70^o

c)

160^o

d)

180^o

25.

This is what kind of angle?

a)

obtuse

b)

right

c)

straight

d)

acute

26.

∠7 and ∠8 are _______________

a)

Vertical

b)

Nothing

c)

Adjacent

d)

Supplementary

27.

What angle is vertical to angle 2?

a)

∠4

b)

∠1

c)

∠2

d)

∠5

28.

Which are pairs of vertical angles?

a)

∠COB and ∠COA

b)

∠AOD and ∠AOC

c)

∠COB and ∠AOD

d)

∠BOD and ∠AOD

29.

Which are pairs of adjacent angles?

a)

∠COB and ∠DOA

b)

∠AOD and ∠AOC

c)

∠COB and ∠AOD

d)

∠BOD and ∠AOC

30.

Vertical angles are always

a)

acute

b)

total 180 degrees

c)

congruent (equal measures)

d)

adjacent angles

31.

Which angle is a linear pair with $\angle5$ ?

a)

$\angle2$

b)

$\angle3$

c)

$\angle4$

d)

$\angle9$

e)

$\angle6$

32.

Supplementary angles always add up to

(a)

33.

Which angle is a vertical angle to with $\angle7$ ?

a)

$\angle1$

b)

$\angle5$

c)

$\angle3$

d)

$\angle6$

e)

$\angle9$

34.

Find the value of ∠A.

a)

79 degrees

b)

87 degrees

c)

90 degrees

d)

97 degrees

35.

If m∠1 = 30°, then m∠3 =

a)

30°

b)

60°

c)

150°

d)

undetermined

36.

complementary, supplementary, or neither?

a)

Complementary

b)

Supplementary

c)

Neither

37.

Name a pairs of vertical angles in the figure.

a)

∠1 and ∠4

b)

∠6 and ∠5

c)

∠2 and ∠4

d)

∠1 and ∠6

38.

Name an angle in the figure that is adjacent to angle 2.

a)

∠4

b)

∠5

c)

∠6

d)

∠1

39.

Practice 1a: Name a pair of complementary angles

a)

$\angle1\ and\ \angle2$

b)

$\angle3\ and\ \angle2$

c)

$\angle4\ and\ \angle5$

d)

$\angle3\ and\ \angle5$

40.

Practice 1b: Name a pair of vertical angles

a)

$\angle2\ \ and\ \angle4$

b)

$\angle3\ \ and\ \angle2$

c)

$\angle1\ and\ \angle4$

d)

$\angle3\ \ and\ \angle5$

41.

Practice 1c: Name a pair of linear pair angles

a)

$\angle1\ \ and\ \angle4$

b)

$\angle3\ \ and\ \angle2$

c)

$\angle4\ \ and\ \angle5$

d)

$\angle3\ \ and\ \angle5$

42.

Practice 2: What is the supplement of 74.3 degrees?

a)

$105.7\degree$

b)

$180\degree$

c)

$148.6\degree$

d)

$15.7\degree$

43.

Practice 3: check the two angle measurements you chose. Complementary angles should add up to...

(a)

44.

Practice 4b: What is the sum of $m\angle9+m\angle10=$

a)

$90\degree$

b)

$180\degree$

c)

$360\degree$

d)

$45\degree$

45.

Practice 4c: If the $m\angle9=\ 48\degree$ , what is the $m\angle10?$

a)

$48\degree$

b)

$96\degree$

c)

$132\degree$

d)

$32\degree$

46.

Practice 5a: Linear pair angles are adjacent

a)

sometimes

b)

always

c)

never

47.

The angle relationship shown is -

a)

complementary angles

b)

supplementary angles

c)

vertical angles

d)

angle bisector

48.

Find the missing angle.

a)

60

b)

70

c)

50

d)

140

49.

If the measure of ∠2 is 83°, what is the measure of ∠3?

a)

7°

b)

17°

c)

83°

d)

97°

50.

∠7 and ∠5 are _______________

a)

Vertical

b)

Nothing

c)

Adjacent

d)

Supplementary

51.

Are these angles an example of complementary, supplementary, or neither?

a)

Complementary

b)

Supplementary

c)

Neither

52.

These angles are...

a)

Complementary

b)

Supplementary

c)

Neither

53.

Are these angles an example of complementary, supplementary, or neither?

a)

Complementary

b)

Supplementary

c)

Neither

54.

Which type of angle is this?

a)

Acute

b)

Obtuse

c)

Right

55.

Which one is a right angle?

a)

b)

c)

d)

56.

What kind of angle pair are do the blue angles make?

a)

Vertical

b)

Supplementary

c)

Complementary

57.

What kind of angle pair are do the green angles make?

a)

Vertical

b)

Supplementary

c)

Complementary

58.

True or false: Vertical angles can be adjacent.

a)

True

b)

False

59.

True or false: Two angles can be both complementary and supplementary.

a)

True

b)

False

60.

Complementary angles . . .

a)

have a sum of $90\degree$

b)

have a sum of $180\degree$

c)

are congruent

61.

What could be the measure of angle 1?

a)

$40\degree$

b)

$50\degree$

c)

$180\degree$

d)

$130\degree$

62.

What could be the measure of angle 1?

a)

$25\degree$

b)

$65\degree$

c)

$90\degree$

d)

$115\degree$

63.

Which are pairs of adjacent angles?

a)

∠COB and ∠DOA

b)

∠AOD and ∠AOC

c)

∠COB and ∠AOD

d)

∠BOD and ∠AOC

64.

Which are pairs of vertical angles?

a)

∠COB and ∠COA

b)

∠AOD and ∠AOC

c)

∠COB and ∠AOD

d)

∠BOD and ∠AOD

65.

Which names a pair of adjacent angles?

a)

∠CXD and ∠FXE

b)

∠CXF and ∠DXE

c)

∠CXD and ∠DXE

Angle Basics Practice

Total questions: 65

Worksheet time: 1hrs 13mins

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