EduSahara™ Worksheet

EduSahara™ Worksheet

Name : Chapter Based Worksheet

Chapter : Polygons

Grade : ICSE Grade VIII

License : Non Commercial Use

Question 1

1.

A polygon with 3 sides is called a

(i)

quadrilateral
(ii)

pentagon
(iii)

decagon
(iv)

octagon
(v)

triangle

Question 2

2.

Identify the figure below

(i)

pentagon
(ii)

angle
(iii)

triangle
(iv)

octagon
(v)

decagon

Question 3

3.

Sum of the interior angles in a decagon is

(i)

1470°
(ii)

1445°
(iii)

1455°
(iv)

1440°
(v)

1450°

Question 4

4.

How many diagonals does a hexagon have?

(i)

7
(ii)

8
(iii)

10
(iv)

12
(v)

9

Question 5

5.

Sum of the interior angles in an octagon is

(i)

1080°
(ii)

1095°
(iii)

1110°
(iv)

1085°
(v)

1090°

Question 6

6.

The value of the exterior angle in a regular polygon when the interior angle is given

(i)

90°+ (interior angle)
(ii)

360°- (interior angle)
(iii)

180°+ (interior angle)
(iv)

180°- (interior angle)

Question 7

7.

A polygon with 10 sides is called a

(i)

heptagon
(ii)

decagon
(iii)

hexagon
(iv)

quadrilateral
(v)

pentagon

Question 8

8.

How many diagonals does an octagon have?

(i)

19
(ii)

21
(iii)

18
(iv)

20
(v)

23

Question 9

9.

How many diagonals does a pentagon have?

(i)

4
(ii)

7
(iii)

6
(iv)

3
(v)

5

Question 10

10.

How many sides does an octagon have?

(i)

8
(ii)

5
(iii)

9
(iv)

10
(v)

7

Question 11

11.

How many diagonals does a quadrilateral have?

(i)

0
(ii)

2
(iii)

3
(iv)

1
(v)

4

Question 12

12.

Identify the figure below

(i)

parallelogram
(ii)

triangle
(iii)

rhombus
(iv)

trapezium
(v)

angle

Question 13

13.

Identify the figure below

(i)

triangle
(ii)

pentagon
(iii)

quadrilateral
(iv)

nonagon
(v)

decagon

Question 14

14.

Identify the figure below

(i)

triangle
(ii)

nonagon
(iii)

hexagon
(iv)

decagon
(v)

heptagon

Question 15

15.

A polygon with 8 sides is called an

(i)

hexagon
(ii)

quadrilateral
(iii)

heptagon
(iv)

octagon
(v)

nonagon

Question 16

16.

How many diagonals does a heptagon have?

(i)

13
(ii)

15
(iii)

12
(iv)

14
(v)

16

Question 17

17.

Find the number of sides in a regular polygon if each
exterior
angle is
18°

(i)

18
(ii)

19
(iii)

21
(iv)

20
(v)

23

Question 18

18.

Sum of the interior angles in a triangle is

(i)

180°
(ii)

190°
(iii)

185°
(iv)

195°
(v)

210°

Question 19

19.

Sum of the interior angles in a quadrilateral is

(i)

365°
(ii)

375°
(iii)

370°
(iv)

360°
(v)

390°

Question 20

20.

How many sides does a nonagon have?

(i)

7
(ii)

10
(iii)

12
(iv)

9
(v)

8

Question 21

21.

Sum of the interior angles in a hexagon is

(i)

730°
(ii)

750°
(iii)

725°
(iv)

735°
(v)

720°

Question 22

22.

Identify the figure below

(i)

hexagon
(ii)

nonagon
(iii)

pentagon
(iv)

octagon
(v)

triangle

Question 23

23.

How many sides does a hexagon have?

(i)

6
(ii)

4
(iii)

9
(iv)

7
(v)

5

Question 24

24.

How many diagonals does a triangle have?

(i)

4
(ii)

3
(iii)

2
(iv)

1
(v)

0

Question 25

25.

Sum of the interior angles in a heptagon is

(i)

930°
(ii)

915°
(iii)

910°
(iv)

905°
(v)

900°

Assignment Key