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Similar/angles practice

Total questions: 50

Worksheet time: 3hrs 31mins

Name
Class
Date
1.

Which is NOT true about similar triangles?

a)

The angles in the triangles are congruent to each other.

b)

The sides are proportional to each other.

c)

The angles in each triangle add up to 180o.

d)

The triangles must have at least one side that is the same length.

2.
Are the triangles similar?
a)
Yes
b)
No
3.
Are the triangles similar?
a)
Yes
b)
No
4.
Which triangles are similar to triangle A?
a)
B
b)
C
c)
Both
d)
None
5.
Find the measure of the missing angle.
a)
8o
b)
58o
c)
122o
d)
64o
6.
What is the measure of angle b?
a)
36o
b)
56o
c)
63o
d)
117o
7.
What does it mean for two shapes to be similar?
a)
Same shape, but different size.
b)
Same size and same shape.
c)
Their angles add up to 180o.
d)
They are congruent.
8.

Tell whether the triangles are similar. Explain.

a)

Yes because it looks like it

b)

Yes because 81 + 48 + 51 = 180

c)

No because 81 + 48 + 51 =/= 180

d)

Def not

9.

Tell whether the triangles are similar. Explain.

a)

Yes because why not

b)

No because x = 107

c)

Yes because the triangles have at least two congruent angles.

d)

Nah

10.
Are the triangles similar?
a)
Yes
b)
No
11.
Are these figures similar?
a)
yes
b)
no
12.
Are these figures similar?
a)
yes
b)
no
13.
Are the following similar? Why or why not?
a)
Yes. All pairs of corresponding angles are congruent.
b)
No, the corresponding angles are not equal.
c)
No, the ratios of the corresponding sides are not equal.
14.
Which triangles are similar to triangle A?
a)
B
b)
C
c)
Both
d)
None
15.

Are the triangles similar?

a)

Yes

b)

No

16.
Are the triangles similar?
a)
Yes
b)
No
17.

Inside any triangle the sum of all the angles in degrees is always:

a)

360

b)

90

c)

150

d)

|80

18.

How many degrees is X?

a)

65

b)

70

c)

90

d)

55

19.

How many degrees is X?

a)

37

b)

47

c)

7

d)

90

20.

How many triangles in the figure are acute?

a)

1

b)

2

c)

3

d)

4

21.
Find the measure of the indicated angle. 
a)
95
b)
85
c)
35
d)
45
22.

How many pairs of vertical angles are shown in the figure?

a)

2

b)

4

c)

6

d)

8

23.

which of the following pairs of angles have the same measure?

a)

angle 1 and angle 7

b)

angle 2 and angle 3

c)

angle 3 and angle 6

d)

angle 4 and angle 5

24.

Which of the following terms describes the relationship between angle 3 and angle 7

a)

alternate exterior angles

b)

alternate interior angles

c)

corresponding angles

d)

vertical angles

25.

Which of the following pairs of the angles are supplementary angles?

a)

angle 1 and angle 7

b)

angle 2 and angle 6

c)

angle 3 and angle 7

d)

angle 4 and angle 5

26.

Classify angles 1 and 2

a)

corresponding angles

b)

alternate exterior algles

c)

vertical angles

d)

alternate interior angles

e)

supplementary angles

27.

What it the measurement for angle 1?

a)

140o

b)

180o

c)

40o

d)

160o

28.

What it the measurement for angle 9?

a)

140o

b)

180o

c)

40o

d)

160o

29.

What it the measurement for angle 12?

a)

140o

b)

180o

c)

40o

d)

160o

30.
State the angle relationship and find the measure of angle 1
a)
Corresponding
110
b)
Alternate Exterior
110
c)
Corresponding
70
d)
Alternate Exterior
70
31.
State the angle relationship and find the measure of angle 1
a)
Corresponding
110
b)
Alternate Exterior
110
c)
Corresponding
70
d)
Alternate Exterior
70
32.
State the angle relationship and find the measure of angle 3
a)
Alternate Interior
50
b)
Alternate Interior
130
c)
Corresponding
130
d)
Corresponding
50
33.
State the angle relationship and find the measure of angle 2
a)
Alternate Interior
90
b)
Alternate Exterior
90
c)
Corresponding
90
d)
Same Side Interior
90
34.
State the angle relationship and find the measure of angle 3
a)
Alternate Interior
50
b)
Alternate Interior
130
c)
Corresponding
130
d)
Corresponding
50
35.
State the angle relationship and find the measure of angle 1
a)
Alternate Interior
37
b)
Alternate Interior
143
c)
Corresponding
143
d)
Corresponding
37
36.
State the angle relationship and find the measure of angle 2
a)
Alternate Exterior
127
b)
Alternate Exterior
52
c)
Alternate Interior
127
d)
Alternate Interior
52
37.
State the angle relationship and find the measure of angle 3
a)
Alternate Exterior
94
b)
Alternate Exterior
86
c)
Alternate Interior
86
d)
Alternate Interior
94
38.
State the angle relationship and find the measure of angle ABC
a)
Alternate Exterior
131
b)
Alternate Exterior
49
c)
Alternate Interior
131
d)
Alternate Interior
49
39.
State the angle relationship and find the measure of angle ABC
a)
Corresponding
94
b)
Corresponding
86
c)
Alternate Exterior
94
d)
Alternate Exterior
86
40.
State the angle relationship and find the measure of angle ABC
a)
Corresponding
60
b)
Corresponding
120
c)
Alternate Exterior
120
d)
Alternate Exterior
60
41.
If lines are parallel, then alternate interior angles are _____________
a)
congruent
b)
parallel
c)
complementary
d)
supplementary
42.
If lines are parallel, then alternate exterior angles are _____________
a)
congruent
b)
parallel
c)
complementary
d)
supplementary
43.
If lines are parallel, then Corresponding angles are _____________
a)
congruent
b)
parallel
c)
complementary
d)
supplementary
44.
For corresponding angles to be congruent, the two lines must be _____________
a)
congruent
b)
parallel
c)
perpendicular
d)
bisectors
45.
For alternate interior angles to be congruent, the two lines must be _____________
a)
congruent
b)
parallel
c)
perpendicular
d)
bisectors
46.
For alternate exterior angles to be congruent, the two lines must be _____________
a)
congruent
b)
parallel
c)
perpendicular
d)
bisectors
47.
Which are pairs of vertical angles?
a)
∠COB & ∠COA
b)
∠AOD & ∠AOC
c)
∠COB & ∠AOD
d)
∠BOD & ∠AOD
48.
Find the missing angle.  Find x.
a)
20o
b)
70o
c)
160o
d)
180o
49.
Vertical angles are always
a)
acute
b)
total 180 degrees
c)
congruent (equal measures)
d)
adjacent angles
50.
If m∠1 = 30°, then m∠3 = 
a)
30°
b)
60°
c)
150°
d)
undetermined