EduSahara™ Worksheet
Name : Chapter Based Worksheet
Chapter : Polygons
Grade : ICSE Grade VIII
License : Non Commercial Use
Question
1
1.
Which of the following figures is a regular quadrilateral?
(i)
parallelogram
(ii)
rhombus
(iii)
rectangle
(iv)
square
(v)
trapezium
Question
2
2.
Sum of the interior angles in an octagon is
(i)
1110°
(ii)
1095°
(iii)
1080°
(iv)
1085°
(v)
1090°
Question
3
3.
A polygon with 6 sides is called a
(i)
nonagon
(ii)
triangle
(iii)
heptagon
(iv)
hexagon
(v)
decagon
Question
4
4.
How many sides does a hexagon have?
(i)
9
(ii)
6
(iii)
3
(iv)
5
(v)
7
Question
5
5.
Identify the figure below
(i)
parallelogram
(ii)
triangle
(iii)
circle
(iv)
square
(v)
trapezium
Question
6
6.
The value of the exterior angle in a regular polygon when the interior angle is given
(i)
180°+ (interior angle)
(ii)
180°- (interior angle)
(iii)
360°- (interior angle)
(iv)
90°+ (interior angle)
Question
7
7.
How many diagonals does a nonagon have?
(i)
26
(ii)
30
(iii)
25
(iv)
28
(v)
27
Question
8
8.
How many diagonals does a heptagon have?
(i)
15
(ii)
13
(iii)
12
(iv)
16
(v)
14
Question
9
9.
Find the number of sides in a regular polygon if each
exterior
angle is
36°
(i)
10
(ii)
11
(iii)
7
(iv)
13
(v)
9
Question
10
10.
The number of diagonals in a regular polygon with n sides is
(i)
(
n
)
(
n
−
3
)
2
(ii)
(
n
)
(
n
+
2
)
2
(iii)
(
n
)
(
n
+
3
)
2
(iv)
(
n
)
(
n
−
2
)
2
(v)
(
n
)
(
n
−
1
)
2
Question
11
11.
Identify the figure below
(i)
triangle
(ii)
octagon
(iii)
quadrilateral
(iv)
hexagon
(v)
circle
Question
12
12.
A polygon with 9 sides is called a
(i)
nonagon
(ii)
heptagon
(iii)
octagon
(iv)
pentagon
(v)
hexagon
Question
13
13.
Identify the figure below
(i)
hexagon
(ii)
angle
(iii)
circle
(iv)
pentagon
(v)
heptagon
Question
14
14.
Identify the figure below
(i)
triangle
(ii)
pentagon
(iii)
angle
(iv)
quadrilateral
(v)
circle
Question
15
15.
How many sides does a decagon have?
(i)
11
(ii)
12
(iii)
7
(iv)
10
(v)
9
Question
16
16.
A polygon with 4 sides is called a
(i)
octagon
(ii)
heptagon
(iii)
quadrilateral
(iv)
pentagon
(v)
decagon
Question
17
17.
A polygon with 3 sides is called a
(i)
nonagon
(ii)
decagon
(iii)
triangle
(iv)
hexagon
(v)
octagon
Question
18
18.
The value of each interior angle in an n-sided regular polygon is
(i)
[
(2n - 4) x 180
n
]
°
(ii)
(
n
360
)
°
(iii)
[
(2n - 4) x 90
n
]
°
(iv)
(
360
n
)
°
Question
19
19.
How many sides does a heptagon have?
(i)
9
(ii)
8
(iii)
6
(iv)
5
(v)
7
Question
20
20.
How many diagonals does a triangle have?
(i)
1
(ii)
2
(iii)
3
(iv)
0
(v)
4
Question
21
21.
How many diagonals does a quadrilateral have?
(i)
0
(ii)
4
(iii)
3
(iv)
1
(v)
2
Question
22
22.
How many sides does an octagon have?
(i)
8
(ii)
7
(iii)
10
(iv)
9
(v)
5
Question
23
23.
Sum of the interior angles in a triangle is
(i)
210°
(ii)
180°
(iii)
195°
(iv)
190°
(v)
185°
Question
24
24.
A polygon with 7 sides is called a
(i)
octagon
(ii)
heptagon
(iii)
hexagon
(iv)
quadrilateral
(v)
nonagon
Question
25
25.
Sum of the interior angles in a nonagon is
(i)
1290°
(ii)
1265°
(iii)
1275°
(iv)
1270°
(v)
1260°
Assignment Key
1) (iv)
2) (iii)
3) (iv)
4) (ii)
5) (v)
6) (ii)
7) (v)
8) (v)
9) (i)
10) (i)
11) (ii)
12) (i)
13) (v)
14) (i)
15) (iv)
16) (iii)
17) (iii)
18) (iii)
19) (v)
20) (iv)
21) (v)
22) (i)
23) (ii)
24) (ii)
25) (v)
