IMO Level 1 Mathematics Olympiad (SOF) Class 8: Questions 468  473 of 1040
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Question number: 468
Question
The ratio of areas of two squares, one having triple its diagonals than the other is________.
Choices
Choice (4)  Response  

a.  2: 3 

b.  2: 9 

c.  9: 1 

d.  5: 3 

Question number: 469
Question
The ratio of areas of two squares, one having double its diagonals than the other is________.
Choices
Choice (4)  Response  

a.  4: 1 

b.  9: 1 

c.  2: 3 

d.  2: 9 

Question number: 470
Question
Three cubes whose edges are 1 cm, 6 cm, and 8 cm respectively are melted without any loss of metal into a single cube. The edge of new cube is________.
Choices
Choice (4)  Response  

a. 


b. 
 
c. 


d. 


Question number: 471
Question
What is the ratio of the perimeter of the shaded region to the circumference of the circle?
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 472
Question
A quadrilateral whose one diagonal is 4 cm. If the length of altitudes from opposite vertices on the diagonal is 2.5 cm and 1.5 cm, then the area of quadrilateral is ________.
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 473
Question
The number of surfaces in right circular cylinder is________.
Choices
Choice (4)  Response  

a.  1 

b.  2 

c.  3 

d.  4 
