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WorksheetsInterior and Exterior Angles of Polygons
Total questions: 15
Worksheet time: 1hrs 15mins
Name
Class
Date
1.
What is the SUM of the angle measures in a nonagon?
a)
1440°
b)
900°
c)
1080°
d)
1260°
2.
What is the measure of ONE interior angle in a regular pentagon ?
a)
90°
b)
108°
c)
120°
d)
180°
3.
Find the missing angle.
a)
75
b)
85
c)
100
d)
45
4.
Find the value of X
a)
94
b)
25
c)
36
d)
180
5.
What is the measure of each interior angle of a regular polygon?
a)
(n−2)180
b)
n(n−2)180
c)
n(n−2)360
d)
n360
6.
What is the measure of ONE interior angle of a regular octagon?
a)
135
b)
180
c)
145
d)
190
7.
What is the measure of ONE interior angle of a regular 20-gon?
a)
90
b)
146
c)
162
d)
122
8.
What is the sum of exterior angles of a pentagon?
a)
180
b)
360
c)
540
d)
760
9.
What is the value of x?
a)
26.25
b)
38.75
c)
24
d)
25.125
10.
Solve for . a+b
a)
90°
b)
110°
c)
200°
d)
80°
11.
Find the value of X.
a)
60
b)
120
c)
85
d)
55
12.
What is the measure of each exterior angle of a 20-gon?
a)
14°
b)
15°
c)
17°
d)
18°
13.
If an interior angle of a regular polygon measures 144°, how many sides does it have?
a)
8
b)
9
c)
10
14.
If an exterior angle of a regular polygon measures 15°, how many sides does it have?
a)
23
b)
24
c)
25
15.
Determine the measure of angle d.
a)
144°
b)
36°
c)
72°
d)
18°
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