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WorksheetsTriangle Sum Theorem
Total questions: 10
Worksheet time: 50mins
Name
Class
Date
1.
Find the measure of the missing angle.
a)
30o
b)
110o
c)
150o
d)
40o
2.
Find the measure of the missing angle.
a)
90o
b)
100
c)
130o
d)
50o
3.
The Triangle Sum Theorem states that the sum of all angles in a triangle is ______.
a)
45°
b)
90°
c)
180°
d)
360°
4.
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
5.
Find the measure of the missing angle.
a)
90o
b)
100
c)
130o
d)
50o
6.
A triangle has one angle that measures 75° and one angle that measures 19°. What is the measure of the third angle?
a)
86°
b)
94°
c)
105°
d)
161°
7.
What is the measure of the missing angle?
a)
82
b)
43
c)
55
d)
180
8.
Find the measure of the missing angle.
a)
47
b)
57
c)
53
d)
133
9.
A triangle has one angle that measure 81° and one that measures 37°. What is the measure of the third angle?
a)
62°
b)
76°
c)
118°
d)
99°
10.
What is the measure of angle C?
a)
33 degrees
b)
35 degrees
c)
42 degrees
d)
70 degrees
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