EduSahara™ Worksheet

Question 1

1.

Sum of the interior angles in a quadrilateral is

(i)

390°
(ii)

360°
(iii)

370°
(iv)

375°
(v)

365°

Question 2

2.

Identify the figure below

(i)

triangle
(ii)

circle
(iii)

trapezium
(iv)

rectangle
(v)

parallelogram

Question 3

3.

How many diagonals does a triangle have?

(i)

2
(ii)

3
(iii)

0
(iv)

4
(v)

1

Question 4

4.

Find the number of sides in a regular polygon if each
interior
angle is
150°

(i)

13
(ii)

11
(iii)

12
(iv)

14
(v)

10

Question 5

5.

How many sides does a pentagon have?

(i)

6
(ii)

8
(iii)

2
(iv)

4
(v)

5

Question 6

6.

How many diagonals does a heptagon have?

(i)

14
(ii)

15
(iii)

16
(iv)

13
(v)

11

Question 7

7.

Identify the figure below

(i)

quadrilateral
(ii)

heptagon
(iii)

circle
(iv)

nonagon
(v)

octagon

Question 8

8.

How many sides does a triangle have?

(i)

2
(ii)

0
(iii)

4
(iv)

3
(v)

6

Question 9

9.

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

(i)

(

n

) (

n

−

2

)

2
(ii)

(

n

) (

n

+

3

)

2
(iii)

(

n

) (

n

−

3

)

2
(iv)

(

n

) (

n

+

2

)

2
(v)

(

n

) (

n

−

1

)

2

Question 10

10.

Identify the figure below

(i)

heptagon
(ii)

pentagon
(iii)

angle
(iv)

octagon
(v)

circle

Question 11

11.

How many diagonals does an octagon have?

(i)

19
(ii)

22
(iii)

21
(iv)

20
(v)

17

Question 12

12.

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

(i)

[
(2n - 4) x 180
n
] °
(ii)

[
(2n - 4) x 90
n
] °
(iii)

(
360
n
) °
(iv)

(
n
360
) °

Question 13

13.

Identify the figure below

(i)

angle
(ii)

nonagon
(iii)

decagon
(iv)

triangle
(v)

octagon

Question 14

14.

How many diagonals does a quadrilateral have?

(i)

0
(ii)

1
(iii)

2
(iv)

3
(v)

4

Question 15

15.

How many sides does a hexagon have?

(i)

5
(ii)

4
(iii)

7
(iv)

6
(v)

9

Question 16

16.

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 17

17.

Sum of the interior angles in an octagon is

(i)

1080°
(ii)

1085°
(iii)

1095°
(iv)

1090°
(v)

1110°

Question 18

18.

Sum of the interior angles in a decagon is

(i)

1455°
(ii)

1445°
(iii)

1470°
(iv)

1440°
(v)

1450°

Question 19

19.

Identify the figure below

(i)

octagon
(ii)

hexagon
(iii)

decagon
(iv)

angle
(v)

circle

Question 20

20.

How many diagonals does a pentagon have?

(i)

2
(ii)

5
(iii)

4
(iv)

7
(v)

6

Question 21

21.

Sum of the interior angles in a hexagon is

(i)

730°
(ii)

735°
(iii)

720°
(iv)

750°
(v)

725°

Question 22

22.

How many sides does a quadrilateral have?

(i)

2
(ii)

3
(iii)

4
(iv)

5
(v)

7

Question 23

23.

A polygon with 6 sides is called a

(i)

heptagon
(ii)

triangle
(iii)

hexagon
(iv)

quadrilateral
(v)

decagon

Question 24

24.

Identify the figure below

(i)

triangle
(ii)

heptagon
(iii)

decagon
(iv)

nonagon
(v)

hexagon

Question 25

25.

A polygon with 7 sides is called a

(i)

pentagon
(ii)

triangle
(iii)

decagon
(iv)

octagon
(v)

heptagon

Assignment Key