WorksheetsAngles in Triangles
Total questions: 25
Worksheet time: 1hrs 20mins
Name
Class
Date
1.
What is the SUM of the angle measures in a triangle (3 sides)?
a)
60°
b)
90°
c)
120°
d)
180°
2.
Find the measure of the missing angle.
a)
90o
b)
100
c)
130o
d)
50o
3.
Find the measure of each angle indicated.
a)
139°
b)
66°
c)
138°
d)
116°
4.
Find the measure of the indicated angle.
a)
95
b)
85
c)
35
d)
45
5.
Find the measure of the indicated angle.
a)
26
b)
36
c)
85
d)
144
6.
An angle that is exactly 90 degrees.
a)
right
b)
acute
c)
obtuse
d)
straight
7.
Which of the following sets of angles DO make a triangle?
a)
80, 40, 55
b)
38, 64, 75
c)
41, 56, 83
d)
25, 89, 40
8.
Which of the following sets DO NOT make a triangle?
a)
60, 60, 60
b)
55, 65, 45
c)
45, 90, 45
d)
75, 40, 65
9.
Find the missing angle.
a)
29°
b)
39°
c)
49°
d)
59°
10.
60 + 5x + 60 = 180
(numeric solver)
Solve for x.
a)
5
b)
12
c)
-7
d)
-6
11.
Find the measure of the missing angle.
a)
30o
b)
110o
c)
150o
d)
40o
12.
An angle that is exactly 90 degrees.
a)
right
b)
acute
c)
obtuse
d)
straight
13.
An angle that is less than 90o.
a)
right
b)
acute
c)
obtuse
d)
straight
14.
If two of the angles of a triangle are 30 and 70 degrees, the third angle measures...
a)
80
b)
100
c)
60
d)
90
15.
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?
Add together.. which angles from a triangle (180 degrees)?
a)
45°, 65°, 70°
b)
150°, 110°, 100°
c)
50°, 50°, 50°
d)
90°, 90°, 90°
16.
Find the measure of the indicated angle.
a)
26
b)
36
c)
85
d)
144
17.
Find the measure of the missing angle.
a)
8o
b)
58o
c)
122o
d)
64o
18.
Solve for x.
x = (a) degrees
19.
Solve for x.
x = (a) degrees
20.
Solve for x. Show your work.
x = (a) degrees
21.
Find the missing angle measure.
a)
18°
b)
162°
c)
141°
d)
57°
22.
Find the missing angle measure.
a)
29°
b)
39°
c)
49°
d)
59°
23.
Find the missing angle measure.
a)
45°
b)
90°
c)
65°
d)
110°
24.
Find the missing angle measure.
a)
45°
b)
90°
c)
65°
d)
110°
25.
Find the missing angle measure.
a)
50°
b)
45°
c)
130°
d)
110°
100 %
