IMO Level 1 Mathematics Olympiad (SOF) Class 8: Questions 484  489 of 1040
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Question number: 484
Question
The surface areas of the six faces of a rectangular solid are 1,1, 9,9, 25 and 25 square centimeters. The volume of the solid, in cubic centimeters is________.
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 485
Question
In the given figure PQRS is a square inscribed in a circle with center O and radius r. The total area of shaded region is________.
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 486
Question
The dimensions of an open box are 60 cm, 50 cm and 33 cm. Its thickness is 3 cm. If 1 cubic cm of metal used in the box weights 0.5 gm, find the weight of the box.
Choices
Choice (4)  Response  

a.  13 kg  
b.  13.860 kg  
c.  12.11 kg  
d.  14.56 kg 
Question number: 487
Question
The volume of a cube is 343, its surface area is________.
Choices
Choice (4)  Response  

a.  
b. 
 
c. 
 
d. 

Question number: 488
Question
A cylinder whose cross section is an ellipse is called ________ cylinder.
Choices
Choice (4)  Response  

a.  Parabolic  
b.  Hyperbolic  
c.  Elliptic  
d.  Question does not provide sufficient data or is vague 
Question number: 489
Question
If a wire is bent into the shape of a square, then the area of the square is 64 sq. cm. When the wire is bent into a semicircular shape, then the area of the semicircle will be________.
Choices
Choice (4)  Response  

a.  
b. 
 
c.  
d. 
