Scroll:Geometry >> Angles >> saq (615)

Written Instructions:

For each Multiple Choice Question (MCQ), four options are given. One of them is the correct answer. Make your choice (1,2,3 or 4). Write your answers in the brackets provided..

For each Short Answer Question(SAQ) and Long Answer Question(LAQ), write your answers in the blanks provided.

Leave your answers in the simplest form or correct to two decimal places.


 

1)  

The following figure is made up of straight lines. Find the unknown angle.

x
109°
38°

o


Answer:_______________




2)  

The following figure is made up of straight lines. Find the unknown angle.

x
101°
33°

o


Answer:_______________




3)  

The following figure is made up of straight lines. Find the unknown angle.

x
106°
28°

o


Answer:_______________




4)  

The following figure is made up of straight lines. Find the unknown angle.

x
117°
33°

o


Answer:_______________




5)  

The following figure is made up of straight lines. Find the unknown angle.

x
105°
26°

o


Answer:_______________




6)  

The following figure is made up of straight lines. Find the unknown angle.

x
113°
24°

o


Answer:_______________




7)  

The following figure is made up of straight lines. Find the unknown angle.

x
115°
27°

o


Answer:_______________




8)  

The following figure is made up of straight lines. Find the unknown angle.

x
120°
31°

o


Answer:_______________




9)  

The following figure is made up of straight lines. Find the unknown angle.

x
110°
20°

o


Answer:_______________




10)  

The following figure is made up of straight lines. Find the unknown angle.

x
110°
32°

o


Answer:_______________




 

1)  

The following figure is made up of straight lines. Find the unknown angle.

x
109°
38°

Answer: 33 o


SOLUTION 1 :

Angles on a straight line :180o

Step 1:

180o - 109o = 71o

71o - 38o = 33o 

∠x  =  33o



2)  

The following figure is made up of straight lines. Find the unknown angle.

x
101°
33°

Answer: 46 o


SOLUTION 1 :

Angles on a straight line :180o

Step 1:

180o - 101o = 79o

79o - 33o = 46o 

∠x  =  46o



3)  

The following figure is made up of straight lines. Find the unknown angle.

x
106°
28°

Answer: 46 o


SOLUTION 1 :

Angles on a straight line :180o

Step 1:

180o - 106o = 74o

74o - 28o = 46o 

∠x  =  46o



4)  

The following figure is made up of straight lines. Find the unknown angle.

x
117°
33°

Answer: 30 o


SOLUTION 1 :

Angles on a straight line :180o

Step 1:

180o - 117o = 63o

63o - 33o = 30o 

∠x  =  30o



5)  

The following figure is made up of straight lines. Find the unknown angle.

x
105°
26°

Answer: 49 o


SOLUTION 1 :

Angles on a straight line :180o

Step 1:

180o - 105o = 75o

75o - 26o = 49o 

∠x  =  49o



6)  

The following figure is made up of straight lines. Find the unknown angle.

x
113°
24°

Answer: 43 o


SOLUTION 1 :

Angles on a straight line :180o

Step 1:

180o - 113o = 67o

67o - 24o = 43o 

∠x  =  43o



7)  

The following figure is made up of straight lines. Find the unknown angle.

x
115°
27°

Answer: 38 o


SOLUTION 1 :

Angles on a straight line :180o

Step 1:

180o - 115o = 65o

65o - 27o = 38o 

∠x  =  38o



8)  

The following figure is made up of straight lines. Find the unknown angle.

x
120°
31°

Answer: 29 o


SOLUTION 1 :

Angles on a straight line :180o

Step 1:

180o - 120o = 60o

60o - 31o = 29o 

∠x  =  29o



9)  

The following figure is made up of straight lines. Find the unknown angle.

x
110°
20°

Answer: 50 o


SOLUTION 1 :

Angles on a straight line :180o

Step 1:

180o - 110o = 70o

70o - 20o = 50o 

∠x  =  50o



10)  

The following figure is made up of straight lines. Find the unknown angle.

x
110°
32°

Answer: 38 o


SOLUTION 1 :

Angles on a straight line :180o

Step 1:

180o - 110o = 70o

70o - 32o = 38o 

∠x  =  38o