IMO Mathematics Olympiad Class 10: Questions 450  455 of 699
Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 699 questions. Access all new questions we will add tracking exampattern and syllabus changes. View Sample Explanation or View Features.
Rs. 350.00 or
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 