IMO Mathematics Olympiad Class 9: Questions 249  254 of 919
Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 919 questions. Access all new questions we will add tracking exampattern and syllabus changes. View Sample Explanation or View Features.
Rs. 450.00 or
Question number: 249
Question
If the altitude of an equilateral triangle is , its area is ________
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 250
Question
The Point identified in figure by the Coordinates (6, 4) is ________
Choices
Choice (4)  Response  

a.  Y  
b.  Z  
c.  W  
d.  X 
Question number: 251
Question
A triangle and a trapezoid are equal in area. They also have the same altitudes. If the base of the triangle is 18 inches, the mean of the parallel sides of the trapezoid is ________
Choices
Choice (4)  Response  

a.  36 inches  
b.  Not obtained from this data  
c.  18 inches  
d.  9 inches 
Question number: 252
Question
The area of an isosceles triangle having base 32 cm and one side 20 cm is________
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 253
Question
A circular park of 20 metre diameter has a circular path just inside the boundary of width 1 metre. The area of path is ________
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 254
Question
What is the point of concurrency of the perpendicular bisectors in a triangle called ________.
Choices
Choice (4)  Response  

a.  Circumcentre  
b.  Centroid  
c.  Incentre  
d.  Orthocentre 