IMO Mathematics Olympiad (SOF) Class 9: Questions 448  453 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: 448
Question
In the adjoining figure, , then is ________
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 449
Question
The locus of a point equidistant from the three sides of a triangle is ________
Choices
Choice (4)  Response  

a.  Circumcenter 

b.  Centroid 

c.  Incenter 

d.  Orthocenter 

Question number: 450
Question
The distance between the points P (4, 3) and Q (5, 6) is calculated as
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 451
Question
The and are right angles. If , and , then the length of XZ is ________
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 452
Question
If the point (5, 7) lies on the graph of the equation, find the value of a.
Choices
Choice (4)  Response  

a.  7 

b.  9 

c.  6 

d.  8 

Question number: 453
Question
A rectangular field has its length and breadth in the ratio. Its area is 0.9 hectares. The cost of fencing it at RS. 10 per meter is ________
Choices
Choice (4)  Response  

a.  Rs. 6200 

b.  Rs. 7400 

c.  Rs. 4200 

d.  Rs. 5200 
