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
120°
36°

o


Answer:_______________




2)  

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

x
117°
28°

o


Answer:_______________




3)  

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

x
104°
33°

o


Answer:_______________




4)  

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

x
103°
37°

o


Answer:_______________




5)  

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

x
119°
25°

o


Answer:_______________




6)  

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

x
118°
24°

o


Answer:_______________




7)  

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

x
120°
39°

o


Answer:_______________




8)  

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

x
100°
28°

o


Answer:_______________




9)  

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

x
120°
25°

o


Answer:_______________




10)  

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

x
100°
27°

o


Answer:_______________




 

1)  

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

x
120°
36°

Answer: 24 o


SOLUTION 1 :

Angles on a straight line :180o

Step 1:

180o - 120o = 60o

60o - 36o = 24o 

∠x  =  24o



2)  

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

x
117°
28°

Answer: 35 o


SOLUTION 1 :

Angles on a straight line :180o

Step 1:

180o - 117o = 63o

63o - 28o = 35o 

∠x  =  35o



3)  

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

x
104°
33°

Answer: 43 o


SOLUTION 1 :

Angles on a straight line :180o

Step 1:

180o - 104o = 76o

76o - 33o = 43o 

∠x  =  43o



4)  

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

x
103°
37°

Answer: 40 o


SOLUTION 1 :

Angles on a straight line :180o

Step 1:

180o - 103o = 77o

77o - 37o = 40o 

∠x  =  40o



5)  

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

x
119°
25°

Answer: 36 o


SOLUTION 1 :

Angles on a straight line :180o

Step 1:

180o - 119o = 61o

61o - 25o = 36o 

∠x  =  36o



6)  

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

x
118°
24°

Answer: 38 o


SOLUTION 1 :

Angles on a straight line :180o

Step 1:

180o - 118o = 62o

62o - 24o = 38o 

∠x  =  38o



7)  

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

x
120°
39°

Answer: 21 o


SOLUTION 1 :

Angles on a straight line :180o

Step 1:

180o - 120o = 60o

60o - 39o = 21o 

∠x  =  21o



8)  

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

x
100°
28°

Answer: 52 o


SOLUTION 1 :

Angles on a straight line :180o

Step 1:

180o - 100o = 80o

80o - 28o = 52o 

∠x  =  52o



9)  

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

x
120°
25°

Answer: 35 o


SOLUTION 1 :

Angles on a straight line :180o

Step 1:

180o - 120o = 60o

60o - 25o = 35o 

∠x  =  35o



10)  

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

x
100°
27°

Answer: 53 o


SOLUTION 1 :

Angles on a straight line :180o

Step 1:

180o - 100o = 80o

80o - 27o = 53o 

∠x  =  53o