EduSahara™ Worksheet

EduSahara™ Worksheet

Name : Chapter Based Worksheet

Chapter : Polygons

Grade : ICSE Grade VIII

License : Non Commercial Use

Question 1

1.

How many sides does a triangle have?

(i)

2
(ii)

4
(iii)

5
(iv)

1
(v)

3

Question 2

2.

How many diagonals does a quadrilateral have?

(i)

4
(ii)

0
(iii)

2
(iv)

1
(v)

3

Question 3

3.

Identify the figure below

(i)

nonagon
(ii)

hexagon
(iii)

octagon
(iv)

heptagon
(v)

angle

Question 4

4.

Identify the figure below

(i)

nonagon
(ii)

decagon
(iii)

pentagon
(iv)

triangle
(v)

angle

Question 5

5.

Find the number of sides in a regular polygon if each
interior
angle is
140°

(i)

8
(ii)

9
(iii)

10
(iv)

6
(v)

11

Question 6

6.

The number of diagonals in a regular polygon with n sides is

(i)

(

n

) (

n

+

3

)

2
(ii)

(

n

) (

n

−

1

)

2
(iii)

(

n

) (

n

−

3

)

2
(iv)

(

n

) (

n

−

2

)

2
(v)

(

n

) (

n

+

2

)

2

Question 7

7.

Identify the figure below

(i)

rhombus
(ii)

trapezium
(iii)

circle
(iv)

angle
(v)

square

Question 8

8.

How many sides does a nonagon have?

(i)

10
(ii)

8
(iii)

6
(iv)

12
(v)

9

Question 9

9.

Sum of the interior angles in a nonagon is

(i)

1270°
(ii)

1275°
(iii)

1265°
(iv)

1290°
(v)

1260°

Question 10

10.

Identify the figure below

(i)

circle
(ii)

hexagon
(iii)

angle
(iv)

octagon
(v)

pentagon

Question 11

11.

Sum of the interior angles in a heptagon is

(i)

900°
(ii)

905°
(iii)

915°
(iv)

930°
(v)

910°

Question 12

12.

How many diagonals does a heptagon have?

(i)

13
(ii)

14
(iii)

15
(iv)

17
(v)

12

Question 13

13.

A polygon with 3 sides is called a

(i)

heptagon
(ii)

quadrilateral
(iii)

nonagon
(iv)

triangle
(v)

octagon

Question 14

14.

The value of each exterior angle in an n-sided regular polygon is

(i)

[
(2n - 4) x 90
n
] °
(ii)

(
n
360
) °
(iii)

[
(2n - 4) x 180
n
] °
(iv)

(
360
n
) °

Question 15

15.

Identify the figure below

(i)

quadrilateral
(ii)

decagon
(iii)

octagon
(iv)

angle
(v)

nonagon

Question 16

16.

A polygon with 10 sides is called a

(i)

nonagon
(ii)

heptagon
(iii)

pentagon
(iv)

octagon
(v)

decagon

Question 17

17.

Sum of the interior angles in a pentagon is

(i)

555°
(ii)

540°
(iii)

570°
(iv)

545°
(v)

550°

Question 18

18.

A polygon with 7 sides is called a

(i)

octagon
(ii)

nonagon
(iii)

heptagon
(iv)

hexagon
(v)

quadrilateral

Question 19

19.

How many diagonals does a triangle have?

(i)

2
(ii)

1
(iii)

0
(iv)

4
(v)

3

Question 20

20.

How many diagonals does a hexagon have?

(i)

9
(ii)

8
(iii)

10
(iv)

7
(v)

12

Question 21

21.

Sum of the interior angles in a decagon is

(i)

1455°
(ii)

1450°
(iii)

1445°
(iv)

1440°
(v)

1470°

Question 22

22.

How many sides does a pentagon have?

(i)

5
(ii)

6
(iii)

8
(iv)

4
(v)

3

Question 23

23.

Sum of the interior angles in a triangle is

(i)

185°
(ii)

180°
(iii)

195°
(iv)

210°
(v)

190°

Question 24

24.

The value of each interior angle in an n-sided regular polygon is

(i)

(
360
n
) °
(ii)

[
(2n - 4) x 180
n
] °
(iii)

[
(2n - 4) x 90
n
] °
(iv)

(
n
360
) °

Question 25

25.

How many sides does a hexagon have?

(i)

3
(ii)

7
(iii)

8
(iv)

6
(v)

5

Assignment Key