IMO Mathematics Olympiad Class 9: Questions 440  443 of 919
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Question number: 440
Question
In the figure , and . If the exterior angle RPU is, then the angle TSR is ________
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 441
Question
The number of bullets that can be made out of a cube of lead whose edge measures 22 cm, each bullet being 2 cm in diameter is ________
Choices
Choice (4)  Response  

a.  2662 

b.  1347 

c.  5324 

d.  2541 

Question number: 442
Question
PQR is triangle in which QS, RT are medians. If , and , then the area of is________
Choices
Choice (4)  Response  

a.  180 

b.  360 

c.  216 

d.  220 

Question number: 443
Question
ABC is an equilateral triangle of side. P, Q and R are midpoints of AB, CA and BC respectively. The area of triangle PQR is ________
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 

