IMO Level 1 Mathematics Olympiad (SOF) Class 9: Questions 410  415 of 929
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Question number: 410
Question
A cylindrical rod whose height is 12 times of its radius is melted and recast into spherical balls of same radius. The numbers of balls will be________
Choices
Choice (4)  Response  

a.  6  
b.  9  
c.  7  
d.  2 
Question number: 411
Question
O, P, Q and R are four points on a circle. OQ and PR intersect at a point S such that and , then angle is ________
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 412
Question
How many metres of cloth, 4 m wide, will be required to make a conical tent, the radius of whose base is 14 m and height is 12 m?
Choices
Choice (4)  Response  

a.  105.06 m  
b.  104.07 m  
c.  106.06 m  
d.  115.05 m 
Question number: 413
Question
Points (6,5), (3,1) lies in the________
Choices
Choice (4)  Response  

a.  IV quadrant  
b.  I quadrant  
c.  II quadrant  
d.  III quadrant 
Question number: 414
Question
See the given figure and find the following:
The Point Identified by the coordinates (4,3)
The Point Identified by the coordinates (5, 2)
The Coordinate of D
The Coordinate of A
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 415
Question
The area of an isosceles triangle having base x cm and one side y cm is________
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 
