WorksheetsAngles and Triangles
Total questions: 80
Worksheet time: 2hrs 8mins
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.
Are these angles an example of complementary, supplementary, or neither?
a)
Complementary
b)
Supplementary
c)
Neither
3.
Are these angles an example of complementary, supplementary, or neither?
a)
Complementary
b)
Supplementary
c)
Neither
4.
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
5.
These angles are...
a)
Complementary
b)
Supplementary
c)
Neither
6.
Are these angles an example of complementary, supplementary, or neither?
a)
Complementary
b)
Supplementary
c)
Neither
7.
Find the missing angle.
a)
60
b)
70
c)
50
d)
140
8.
What is the measure of the missing angle?
a)
39
b)
129
c)
119
d)
129
9.
Find the value of x.
a)
17
b)
28
c)
68
d)
39.5
10.
Find the value of x.
a)
13
b)
8.6
c)
5
d)
130
11.
Find the value of x.
a)
14
b)
112
c)
108
d)
104
12.
Find the value of x.
a)
70
b)
10
c)
3
d)
103
13.
Find the value of x.
a)
61
b)
40
c)
54
d)
47
14.
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
15.
If ∠A and ∠B are supplementary, and the measure of ∠A is 120°, what is the measure of ∠B?
a)
180
b)
50
c)
60
d)
80
16.
If ∠H and ∠J are complementary, and the measure of ∠H is 45°, what is the measure of ∠J?
a)
135
b)
45
c)
60
d)
55
17.
If ∠K and ∠S are complementary, and the measure of ∠K is 58°, what is the measure of ∠S?
a)
122
b)
22
c)
110
d)
32
18.
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°
19.
Which are pairs of vertical angles?
a)
∠COB & ∠COA
b)
∠AOD & ∠AOC
c)
∠COB & ∠AOD
d)
∠BOD & ∠AOD
20.
Find the missing angle. Find x.
a)
20o
b)
70o
c)
160o
d)
180o
21.
Find the missing angle. Find x.
a)
20o
b)
70o
c)
160o
d)
180o
22.
Vertical angles are always
a)
acute
b)
total 180 degrees
c)
congruent (equal measures)
d)
adjacent angles
23.
What is the value of x?
a)
37
b)
72
c)
108
d)
18
24.
Find the value of x.
a)
14
b)
60
c)
35
d)
180
25.
Find the value of x.
a)
35
b)
5
c)
55
d)
11
26.
Which are pairs of adjacent angles?
a)
∠COB & ∠DOA
b)
∠AOD & ∠AOC
c)
∠COB & ∠AOD
d)
∠BOD & ∠AOC
27.
What does it mean if two angles are adjacent?
a)
They share a side and a vertex, but don't overlap
b)
They are opposite each other across an intersection of two lines
c)
They share only a vertex, not a side
d)
none of the above
28.
What is the value of the missing angle?
a)
61
b)
50
c)
60
d)
69
29.
A triangle has angle measurements of 54°, 52°, and 74°. What kind of triangle is it?
a)
acute triangle
b)
right triangle
c)
obtuse triangle
d)
none of the above
30.
Which would be the best classification for the triangle shown?
a)
right isosceles
b)
obtuse scalene
c)
obtuse isosceles
d)
acute scalene
31.
The Triangle Sum Theorem states that the if you add all angles in a triangle you will get the magic number ______.
a)
45°
b)
90°
c)
180°
d)
360°
32.
Find the measure of each angle indicated.
a)
33°
b)
136°
c)
36°
d)
31°
33.
.
.
.
.
What is the name of this kind of triangle?
.
.
.
What is the name of this kind of triangle?
a)
Right
b)
Isosceles
c)
Scalene
d)
Equilateral
34.
.
.
.
.
What is the name of this kind of triangle?
.
.
.
What is the name of this kind of triangle?
a)
Right
b)
Scalene
c)
Isosceles
d)
Equilateral
35.
.
.
What kind of triangle is this?
.
What kind of triangle is this?
a)
Acute
b)
Right
c)
Obtuse
d)
Robot
36.
What kind of triangle is this?
a)
Acute
b)
Super
c)
Right
d)
Obtuse
37.
.
.
.
What is the name of this kind of triangle?
.
.
What is the name of this kind of triangle?
a)
Right
b)
Scalene
c)
Isosceles
d)
Equilateral
38.
What kind of triangle is this?
a)
Acute
b)
Right
c)
Sparkly
d)
Obtuse
39.
How many acute angles must an acute triangle have?
a)
2
b)
1
c)
4
d)
3
40.
Find the measure of the indicated angle.
a)
95
b)
85
c)
35
d)
45
41.
Find the measure of angle A.
a)
75o
b)
60o
c)
30o
d)
38o
42.
Solve for x.
a)
16
b)
11
c)
50
d)
6
43.
What type of triangle is this?
a)
scalene
b)
acute
c)
equilateral
d)
isosceles
44.
If all three angles are exactly the same measure, how big is each angle?
Hint: x + x + x = 180
Hint: x + x + x = 180
a)
180 degrees
b)
90 degrees
c)
50 degrees
d)
60 degrees
45.
Angles that are exactly 90 degrees are called _____ ______.
a)
tight angles
b)
acute angles
c)
obtuse angles
d)
right angles
46.
Find the measure of the missing angle.
a)
90o
b)
100
c)
130o
d)
50o
47.
A triangle has angle measurements of 26°, 59°, and 95°. What kind of triangle is it?
a)
acute triangle
b)
right triangle
c)
obtuse triangle
d)
none of the above
48.
A triangle has angle measurements of 163°, 2°, and 15°. What kind of triangle is it?
a)
acute triangle
b)
right triangle
c)
obtuse triangle
d)
none of the above
49.
A triangle has angle measurements of 74°, 90°, and 16°. What kind of triangle is it?
a)
acute triangle
b)
right triangle
c)
obtuse triangle
d)
none of the above
50.
A triangle has angle measurements of 27°, 72°, and 81°. What kind of triangle is it?
a)
acute triangle
b)
right triangle
c)
obtuse triangle
d)
none of the above
51.
A triangle has two 71° angles and one 38° angle. Is this triangle isosceles?
a)
yes
b)
no
52.
a)
yes
b)
no
53.
a)
acute triangle
b)
right triangle
c)
obtuse triangle
d)
none of the above
54.
a)
yes
b)
no
55.
What type of triangle is this?
a)
equilateral triangle
b)
isosceles triangle
c)
scalene triangle
d)
none of the above
56.
a)
yes
b)
no
57.
a)
acute triangle
b)
right triangle
c)
obtuse triangle
d)
none of the above
58.
a)
equilateral triangle
b)
isosceles triangle
c)
scalene triangle
d)
none of the above
59.
a)
Goofy
b)
Pluto
c)
Mickey
d)
Donald
60.
WHO IS THIS
a)
jon jon
b)
joey
c)
jack jack
d)
mo mo
61.
This is what kind of angle?
a)
obtuse
b)
right
c)
straight
d)
acute
62.
a)
Right
b)
Straight
c)
Acute
d)
Obtuse
63.
a)
Right
b)
Straight
c)
Acute
d)
Obtuse
64.
a)
Right
b)
Straight
c)
Acute
d)
Obtuse
65.
Acute angle - an angle that is ______ a 90 degree angle.
a)
more than
b)
less than
c)
equal to
d)
none of the above
66.
Obtuse angle - an angle that is _______ a 90 degree angle.
a)
more than
b)
less than
c)
equal to
d)
none of the above
67.
Name of angle
a)
ACB
b)
ABC
c)
CBA
68.
Name of angle
a)
HFG
b)
FGH
c)
FHG
69.
Name of angle
a)
PNO
b)
PON
c)
NOP
70.
Which angles are vertical angles?
a)
∠8 & ∠7
b)
∠8 & ∠6
c)
∠8 & ∠5
71.
The Triangle Sum Theorem states that the sum of all angles in a triangle is ______.
a)
45°
b)
90°
c)
180°
d)
360°
72.
a)
15
b)
16
c)
18
d)
19
73.
Does a triangle with these side lengths exist?
15, 12, 9
a)
Yes
b)
No
c)
I don't know.
d)
Cannot be determined
74.
State if the three numbers can be measures of the sides of a triangle.
8,10,20
a)
Yes
b)
No
75.
side lengths of 4,4,4 form a triangle
a)
True
b)
False
76.
Name the smallest angle in this triangle.
a)
∠A
b)
∠B
c)
∠C
77.
Can the following side measures form a triangle?
3, 5, 8
3, 5, 8
a)
Yes
b)
No
78.
Does a triangle with these side lengths exist?
15, 12, 9
a)
Yes
b)
No
c)
I don't know.
d)
Cannot be determined
79.
What Disney character is this?
(a)
80.
Who is this?
a)
Mufasa
b)
Simba
c)
Pumba
d)
Scar
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