MathematicsMensuration [NSTSE (National Science Talent Search Exam Unified Council) Class 8]: Questions 1  8 of 101
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Question number: 1
» Mathematics » Mensuration
Question
The area of a sector of a circle of radius 8 cm cut off by an arc which is 9.25 cm long is:
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 2
» Mathematics » Mensuration
Question
The radius of a circle is 28 m, then the circumference of a circle is:
Choices
Choice (4)  Response  

a.  176 m  
b.  14 m  
c.  56 m  
d.  84 m 
Question number: 3
» Mathematics » Mensuration
Question
If the ratio of circumference of two circles is 9: 4 the ratio of their area is:
Choices
Choice (4)  Response  

a.  81: 16  
b.  4: 9  
c.  3: 2  
d.  16: 81 
Question number: 4
» Mathematics » Mensuration
Question
Each side of a cube is increased by 45%. Then the surface area of the cube increases by:
Choices
Choice (4)  Response  

a.  25%  
b.  30%  
c.  45%  
d.  145% 
Question number: 5
» Mathematics » Mensuration
Question
If the altitude of an equilateral triangle is cm, its area is
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 6
» Mathematics » Mensuration
Question
When the circumference and area of a circle are numerically equal, then the diameter is numerically equal to:
Choices
Choice (4)  Response  

a. 
 
b.  Circumference  
c.  Area  
d.  4 
Question number: 7
» Mathematics » Mensuration
Question
A circular grass lawn of 63 m in radius has a path 7 m wide running around it on the outside. The area of the path is
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 8
» Mathematics » Mensuration
Question
The circumference of a circle is 88 m, then the area of the circle is:
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 
