MathematicsCircles [NSTSE (National Science Talent Search Exam Unified Council) Class 9]: Questions 1  4 of 99
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Question number: 1
» Mathematics » Circles
Question
O is the center of a circle and if then is equal to
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 2
» Mathematics » Circles
Question
A chord of a circle is 8 cm in length and its distance from the center is 3 cm. Find the length of the chord of the same circle which is at a distance of 4 cm from the center.
Choices
Choice (4)  Response  

a.  10 cm  
b.  12 cm  
c.  6 cm  
d.  8 cm 
Question number: 3
» Mathematics » Circles
Question
The diameter is
Choices
Choice (4)  Response  

a.  Three times radius of circle  
b.  Smallest chord of a circle  
c.  Greatest chord of a circle  
d.  None of the above 
Question number: 4
» Mathematics » Circles
Question
A regular nonage (9 sides) is inscribed in a circle. The angle that each side of the decagon subtends at the center is
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 
