IMO Level 1 Mathematics Olympiad (SOF) Class 10: Questions 877  882 of 968
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Question number: 877
Question
If and , then ________.
Choices
Choice (4)  Response  

a.   1 

b.  1 

c.  0 

d.  2 

Question number: 878
Question
If and , then ________.
Choices
Choice (4)  Response  

a.   1 

b.  2 

c.  1 

d.  0 

Question number: 879
Question
An observer tall is away from a chimney. The angle of elevation of he top of the chimney from her eyes is the height of the chimney is________.
Choices
Choice (4)  Response  

a.  0.52 

b.  2.5 

c.  1.45 

d.  9.86 

Question number: 880
Question
The top of a broken tree has its top end touching the ground at a distance 9m from the bottom, the angle made by the broken end with the ground is Then length of broken part is________.
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 881
Question
The top of a broken tree has its top end touching the ground at a distance 18m from the bottom, the angle made by the broken end with the ground is Then length of broken part is________.
Choices
Choice (4)  Response  

a.  36 

b.  24 

c.  14 

d.  12 

Question number: 882
Question
An observer tall is away from a chimney. The angle of elevation of he top of the chimney from her eyes is the height of the chimney is________.
Choices
Choice (4)  Response  

a.  2.2 

b.  2.5 

c.  9.02 

d.  1.45 
