EduSahara™ Worksheet

Question 1

1.

Sum of the interior angles in a triangle is

(i)

210°
(ii)

180°
(iii)

195°
(iv)

185°
(v)

190°

Question 2

2.

Sum of the interior angles in a pentagon is

(i)

570°
(ii)

540°
(iii)

545°
(iv)

550°
(v)

555°

Question 3

3.

Identify the figure below

(i)

decagon
(ii)

hexagon
(iii)

quadrilateral
(iv)

pentagon
(v)

angle

Question 4

4.

A polygon with 10 sides is called a

(i)

decagon
(ii)

hexagon
(iii)

nonagon
(iv)

octagon
(v)

quadrilateral

Question 5

5.

Sum of the interior angles in a heptagon is

(i)

905°
(ii)

900°
(iii)

915°
(iv)

910°
(v)

930°

Question 6

6.

A polygon with 3 sides is called a

(i)

quadrilateral
(ii)

hexagon
(iii)

decagon
(iv)

triangle
(v)

nonagon

Question 7

7.

How many sides does an octagon have?

(i)

7
(ii)

9
(iii)

8
(iv)

5
(v)

11

Question 8

8.

How many sides does a nonagon have?

(i)

9
(ii)

10
(iii)

7
(iv)

8
(v)

11

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

−

2

)

2
(iv)

(

n

) (

n

−

3

)

2
(v)

(

n

) (

n

−

1

)

2

Question 10

10.

How many sides does a hexagon have?

(i)

6
(ii)

3
(iii)

7
(iv)

5
(v)

8

Question 11

11.

Sum of the interior angles in a hexagon is

(i)

730°
(ii)

720°
(iii)

725°
(iv)

750°
(v)

735°

Question 12

12.

The value of each interior 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.

A polygon with 4 sides is called a

(i)

pentagon
(ii)

octagon
(iii)

quadrilateral
(iv)

decagon
(v)

hexagon

Question 14

14.

A polygon with 5 sides is called a

(i)

nonagon
(ii)

quadrilateral
(iii)

decagon
(iv)

pentagon
(v)

hexagon

Question 15

15.

Sum of the interior angles in a decagon is

(i)

1440°
(ii)

1455°
(iii)

1450°
(iv)

1470°
(v)

1445°

Question 16

16.

How many diagonals does a nonagon have?

(i)

29
(ii)

28
(iii)

26
(iv)

25
(v)

27

Question 17

17.

A polygon with 7 sides is called a

(i)

quadrilateral
(ii)

nonagon
(iii)

hexagon
(iv)

decagon
(v)

heptagon

Question 18

18.

Sum of the interior angles in a quadrilateral is

(i)

375°
(ii)

390°
(iii)

360°
(iv)

365°
(v)

370°

Question 19

19.

How many diagonals does an octagon have?

(i)

20
(ii)

19
(iii)

21
(iv)

18
(v)

23

Question 20

20.

How many diagonals does a hexagon have?

(i)

8
(ii)

9
(iii)

6
(iv)

10
(v)

12

Question 21

21.

How many diagonals does a quadrilateral have?

(i)

2
(ii)

4
(iii)

0
(iv)

3
(v)

1

Question 22

22.

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

(i)

90°+ (exterior angle)
(ii)

180°- (exterior angle)
(iii)

360°- (exterior angle)
(iv)

180°+ (exterior angle)

Question 23

23.

How many sides does a pentagon have?

(i)

5
(ii)

4
(iii)

3
(iv)

8
(v)

6

Question 24

24.

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

(i)

180°+ (interior angle)
(ii)

90°+ (interior angle)
(iii)

180°- (interior angle)
(iv)

360°- (interior angle)

Question 25

25.

Identify the figure below

(i)

pentagon
(ii)

decagon
(iii)

octagon
(iv)

angle
(v)

nonagon

Assignment Key