EduSahara™ Worksheet

Question 1

1.

In a right angled triangle, if one of the angles is 40.91°, find the third angle

(i)

64.09°
(ii)

54.09°
(iii)

79.09°
(iv)

49.09°
(v)

59.09°

Question 2

2.

In the following figure FG ∥ IH, find the values of x and y.

(i)

x

=

31°

,

y

=

121°
(ii)

x

=

29°

,

y

=

119°
(iii)

x

=

30°

,

y

=

120°
(iv)

x

=

28°

,

y

=

118°
(v)

x

=

32°

,

y

=

122°

Question 3

3.

Find the interior alternate angles in the given figure

(i)

∠1 , ∠2 , ∠7 , ∠8
(ii)

∠3 , ∠4 , ∠5 , ∠6
(iii)

∠3 , ∠5 ; ∠4 , ∠6
(iv)

∠1 , ∠5 ; ∠2 , ∠6 ; ∠3 , ∠7 ; ∠4 , ∠8
(v)

∠3 , ∠6 ; ∠4 , ∠5

Question 4

4.

The following angle represents

(i)

zero angle
(ii)

right angle
(iii)

reflex angle
(iv)

obtuse angle
(v)

complete angle

Question 5

5.

Which of the following are true for alternate angles?

a)	They are in the same side of the transversal
b)	They are on either side of the transversal
c)	They are adjacent angles
d)	One is interior angle and the other is exterior
e)	They are not adjacent angles
f)	Both are interior angles

(i)

{a,b}
(ii)

{b,e,f}
(iii)

{c,e}
(iv)

{d,a,f}
(v)

{c,b,e}

Question 6

6.

Identify the figure below

(i)

hexagon
(ii)

octagon
(iii)

heptagon
(iv)

angle
(v)

pentagon

Question 7

7.

In the given figure, ∠D = 62.79° and ∠E = 61.44°.

Side EF is produced to G, so that ∠EFD and ∠DFG form a linear pair.

(i)

x

=

28.89°

,

y

=

63.11°
(ii)

x

=

26.89°

,

y

=

61.11°
(iii)

x

=

27.89°

,

y

=

62.11°
(iv)

x

=

29.89°

,

y

=

64.11°
(v)

x

=

25.89°

,

y

=

60.11°

Question 8

8.

In the given figure, calculate the value of x.

(i)

x

=

25°
(ii)

x

=

23°
(iii)

x

=

22°
(iv)

x

=

24°
(v)

x

=

21°

Question 9

9.

The following angle represents

(i)

acute angle
(ii)

obtuse angle
(iii)

straight angle
(iv)

zero angle
(v)

right angle

Question 10

10.

The ratio between the base angle and the vertical angle of an isosceles triangle is 13 : 10. Find each angle of the triangle

(i)

A

=

50°

,

B

=

63°

,

C

=

67°
(ii)

A

=

48°

,

B

=

67°

,

C

=

65°
(iii)

A

=

52°

,

B

=

65°

,

C

=

63°
(iv)

A

=

50°

,

B

=

65°

,

C

=

65°
(v)

A

=

48°

,

B

=

65°

,

C

=

67°

Question 11

11.

Where will the hour hand of a clock stop, if it starts from 9 and turns through 3 right angles?

(i)

4
(ii)

7
(iii)

5
(iv)

6
(v)

8

Question 12

12.

Which of the following is the largest angle in the given figure?

(i)

∠KOM
(ii)

∠KOL
(iii)

∠LON
(iv)

∠LOM
(v)

∠KON

Question 13

13.

One of the two equal angles of an isosceles triangle measures 47°. Find the measure of each angle of the triangle.

(i)

A

=

47°

,

B

=

45°

,

C

=

88°
(ii)

A

=

49°

,

B

=

47°

,

C

=

84°
(iii)

A

=

47°

,

B

=

47°

,

C

=

86°
(iv)

A

=

45°

,

B

=

47°

,

C

=

88°
(v)

A

=

45°

,

B

=

49°

,

C

=

86°

Question 14

14.

The name of the given angle is

(i)

∠CDO
(ii)

∠COD
(iii)

∠DCO
(iv)

△COD
(v)

∠CD

Question 15

15.

State the angle between the two hands of the clock when the time is 6 A.M.

(i)

190°
(ii)

210°
(iii)

195°
(iv)

180°
(v)

185°

Question 16

16.

In the given figure, find the value of x.

(i)

x

=

20.5°
(ii)

x

=

23.5°
(iii)

x

=

22.5°
(iv)

x

=

24.5°
(v)

x

=

21.5°

Question 17

17.

In the given figure l ∥ m. Find the value of 'x'

(i)

45°
(ii)

70°
(iii)

55°
(iv)

40°
(v)

50°

Question 18

18.

Which of the following is a right angle?

(i)

280°
(ii)

90°
(iii)

0°
(iv)

180°
(v)

147°

Question 19

19.

In which of the figures given bellow, l ∥ m?

(i)

I
(ii)

III
(iii)

II
(iv)

IV

Question 20

20.

Find the unknown marked angles in the following figure

(i)

x

=

111°

,

y

=

41°
(ii)

x

=

109°

,

y

=

39°
(iii)

x

=

108°

,

y

=

38°
(iv)

x

=

112°

,

y

=

42°
(v)

x

=

110°

,

y

=

40°

Question 21

21.

In a right angled triangle, if one of the angles is 52.43°, find the third angle

(i)

42.57°
(ii)

47.57°
(iii)

52.57°
(iv)

67.57°
(v)

37.57°

Question 22

22.

Which of the following are adjacent angles in the below figure?

(i)

∠GOH , ∠HOI
(ii)

∠JOK , ∠HOI
(iii)

∠KOG , ∠HOI
(iv)

∠IOJ , ∠KOG
(v)

∠HOI , ∠JOK

Question 23

23.

The following angle represents

(i)

obtuse angle
(ii)

reflex angle
(iii)

zero angle
(iv)

straight angle
(v)

right angle

Question 24

24.

A line that intersects two lines at two different points is called

(i)

transversal
(ii)

parallel lines
(iii)

perpendicular lines
(iv)

concurrent lines
(v)

coplanar lines

Question 25

25.

Find the value of x in the given figure.

(i)

x

=

23°
(ii)

x

=

22°
(iii)

x

=

19°
(iv)

x

=

20°
(v)

x

=

21°

Assignment Key