EduSahara™ Worksheet

EduSahara™ Worksheet

Name : Chapter Based Worksheet

Chapter : Polygons

Grade : ICSE Grade VII

License : Non Commercial Use

Question 1

1.

How many diagonals does a triangle have?

(i)

1
(ii)

4
(iii)

2
(iv)

0
(v)

3

Question 2

2.

Identify the figure below

(i)

hexagon
(ii)

circle
(iii)

nonagon
(iv)

triangle
(v)

heptagon

Question 3

3.

How many sides does a decagon have?

(i)

12
(ii)

7
(iii)

10
(iv)

9
(v)

11

Question 4

4.

Identify the figure below

(i)

quadrilateral
(ii)

octagon
(iii)

angle
(iv)

nonagon
(v)

hexagon

Question 5

5.

Sum of the interior angles in a heptagon is

(i)

910°
(ii)

900°
(iii)

915°
(iv)

905°
(v)

930°

Question 6

6.

Find the number of sides in a regular polygon if each
exterior
angle is
20°

(i)

16
(ii)

20
(iii)

18
(iv)

19
(v)

17

Question 7

7.

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

(i)

(
360
n
) °
(ii)

[
(2n - 4) x 180
n
] °
(iii)

(
n
360
) °
(iv)

[
(2n - 4) x 90
n
] °

Question 8

8.

How many sides does a hexagon have?

(i)

3
(ii)

5
(iii)

9
(iv)

7
(v)

6

Question 9

9.

Sum of the interior angles in a hexagon is

(i)

750°
(ii)

720°
(iii)

725°
(iv)

735°
(v)

730°

Question 10

10.

How many sides does a heptagon have?

(i)

8
(ii)

9
(iii)

4
(iv)

6
(v)

7

Question 11

11.

How many sides does a triangle have?

(i)

1
(ii)

3
(iii)

4
(iv)

5
(v)

2

Question 12

12.

A polygon with 3 sides is called a

(i)

hexagon
(ii)

triangle
(iii)

octagon
(iv)

nonagon
(v)

decagon

Question 13

13.

A polygon with 5 sides is called a

(i)

triangle
(ii)

hexagon
(iii)

pentagon
(iv)

decagon
(v)

heptagon

Question 14

14.

Identify the figure below

(i)

angle
(ii)

triangle
(iii)

circle
(iv)

quadrilateral
(v)

octagon

Question 15

15.

Identify the figure below

(i)

pentagon
(ii)

circle
(iii)

triangle
(iv)

hexagon
(v)

decagon

Question 16

16.

A polygon with 10 sides is called a

(i)

triangle
(ii)

quadrilateral
(iii)

heptagon
(iv)

octagon
(v)

decagon

Question 17

17.

Sum of the interior angles in a pentagon is

(i)

550°
(ii)

545°
(iii)

540°
(iv)

555°
(v)

570°

Question 18

18.

How many sides does an octagon have?

(i)

5
(ii)

10
(iii)

8
(iv)

9
(v)

7

Question 19

19.

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

+

2

)

2
(iv)

(

n

) (

n

−

3

)

2
(v)

(

n

) (

n

−

2

)

2

Question 20

20.

Sum of the interior angles in an octagon is

(i)

1095°
(ii)

1085°
(iii)

1090°
(iv)

1110°
(v)

1080°

Question 21

21.

Identify the figure below

(i)

circle
(ii)

triangle
(iii)

hexagon
(iv)

decagon
(v)

angle

Question 22

22.

Sum of the interior angles in a decagon is

(i)

1455°
(ii)

1445°
(iii)

1470°
(iv)

1440°
(v)

1450°

Question 23

23.

How many sides does a nonagon have?

(i)

12
(ii)

10
(iii)

6
(iv)

9
(v)

8

Question 24

24.

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

(i)

[
(2n - 4) x 90
n
] °
(ii)

[
(2n - 4) x 180
n
] °
(iii)

(
n
360
) °
(iv)

(
360
n
) °

Question 25

25.

A polygon with 6 sides is called a

(i)

hexagon
(ii)

triangle
(iii)

heptagon
(iv)

nonagon
(v)

pentagon

Assignment Key