IMO Mathematics Olympiad Class 10: Questions 450  455 of 889
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Question number: 450
Question
If are the midpoints of the sides of , the area of the triangle is ________
Choices
Choice (4)  Response  

a.  8 sq. units 

b.  9 sq. units 

c.  6 sq. units 

d.  7 sq. units 

Question number: 451
Question
Four vertices of a parallelogram taken in order are . What will be the ratio of a and b?
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 452
» Triangle, Circle & Constructions
Question
In an isosceles triangle ABC, is bisected by AD where D lies on BC. It is found that . Then equals ________
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 453
Question
The mean of is ________
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 454
Question
Area of quadrilateral formed by the vertices is ________
Choices
Choice (4)  Response  

a.  8 sq. units 

b.  10 sq. units 

c.  9 sq. units 

d.  7 sq. units 

Question number: 455
Question
The average of 6 number is 40. If one of the numbers is excluded, the mean gets reduced by 5. Then the excluded number is ________
Choices
Choice (4)  Response  

a.  65 

b.  35 

c.  55 

d.  45 
