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Triangles- Angles, Sides, and Their Relationships

Total questions: 16

Worksheet time: 35mins

Name
Class
Date
1.

In a triangle, how many total degrees are there?

a)

90 degrees

b)

180 degrees

c)

it varies

d)

360 degrees

2.

Find the measure of the missing angle.

a)

50

b)

20

c)

29

d)

48

3.
Find the measure of the missing angle.
a)
90o
b)
100
c)
130o
d)
50o
4.

Find the measure of the indicated angle.

a)

95

b)

85

c)

35

d)

45

5.
Solve for x.
a)
16
b)
11
c)
50
d)
6
6.
What is the third angle of a triangle whose 1st angle is 34 and 2nd angle is 101?
a)
32
b)
39
c)
45
d)
54
7.

Which of the following could be angle measures for a triangle?

A 120°, 50°, 20°

B 100°, 200°, 60°

C 30°, 50°, 80°

D 40°, 50°, 90°

a)

A

b)

B

c)

C

d)

D

8.

A student is trying to construct triangles using four different sets of angles. The angles in each set are given below. Which set will form a triangle?

a)

45°, 65°, 70°

b)

150°, 110°, 100°

c)

50°, 50°, 50°

d)

90°, 90°, 90°

9.

Will these three sides form a triangle?

a)

yes

b)

no

10.

Will these side lengths form a triangle?

a)

yes

b)

no

11.

Will these line segments form a triangle?

a)

yes

b)

no

12.

Which of these lengths CANNOT represent the sides of a triangle?

a)

32, 34, 60

b)

28, 30, 58

c)

13, 20, 27

d)

2, 4, 5

13.
a)

A

b)

B

c)

C

d)

D

14.
a)

A

b)

B

c)

C

d)

D

15.

a)

A

b)

B

c)

C

d)

D

16.

a)

A

b)

B

c)

C

d)

D