IMO Mathematics Olympiad (SOF) Class 9: Questions 285  291 of 919
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Question number: 285
Question
The ratio between the perimeter and breadth of rectangle is. If the area of the rectangle is 116 sq. cm. then length of the rectangle is ________
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 286
Question
The and are right angles. If , and , then the length of BD is ________
Choices
Choice (4)  Response  

a.  25 cm 

b.  15 cm 

c.  12 cm 

d.  16 cm 

Question number: 287
Question
The volume of a sphere is the curved surface of its sphere is ________
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 288
Question
The area of trapezium ABCD is ________
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 289
Question
is a point, which belongs to the line________.
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 290
Question
If the coordinate of the two points are P (4, 5) and Q (2,3) then ________
Choices
Choice (4)  Response  

a.  2 

b.  3 

c.  5 

d.  4 

Question number: 291
Question
The radii of two cones are in ration 3: 1, their volumes are equal. Find the ratio of their heights.
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 

