IMO Level 1 Mathematics Olympiad (SOF) Class 9: Questions 440  445 of 929
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Question number: 440
Question
PQR is triangle in which QS, RT are medians. If , and , then the area of is________
Choices
Choice (4)  Response  

a.  220  
b.  180  
c.  360  
d.  216 
Question number: 441
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. 

Question number: 442
Question
The volume of the largest circular cone that can be cut of a cube whose edge is 10 cm is ________
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 443
Question
The largest sphere is cut off from a cube of side 12 cm. the volume of the sphere will be ________
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 444
Question
The altitude drawn to the base of an isosceles triangle is of length 12 cm and the perimeter is 96 cm. the area of the triangle is ________
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 445
Question
In an isosceles triangle ABC, with , the bisectors of and intersect each other at O. join A to O, then________
Choices
Choice (4)  Response  

a.  
b. 
 
c. 
 
d. 
