NSTSE (National Science Talent Search Exam Unified Council) Class 9: Questions 315  319 of 2000
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Question number: 315
» Mathematics » Circles
Question
A chord of a circle is 80 cm in length and its distance from the center is 9 cm. Find the length of the chord of the same circle which is at a distance of 40 cm from the center.
Choices
Choice (4)  Response  

a.  18 cm 

b.  36 cm 

c.  9 cm 

d.  20 cm 

Question number: 316
» Mathematics » Lines and Angles
Question
Can 5 cm, 7 cm, 3 cm form a triangle?
Choices
Choice (4)  Response  

a.  Yes 

b.  No 

c.  Sometimes 

d.  All of the above 

Question number: 317
» Mathematics » Lines and Angles
Question
At 6 O’clock the angle formed between the hands of a clock is
Choices
Choice (4)  Response  

a.  Obtuse angle 

b.  Right angle 

c.  Acute angle 

d.  Straight angle 

Question number: 318
» Mathematics » Lines and Angles
Question
If two lines l and m are perpendicular to each other then they are symbolically written as
Choices
Choice (4)  Response  

a. 


b. 


c. 


d.  Question does not provide sufficient data or is vague 

Question number: 319
» Mathematics » Lines and Angles
Question
In the above figure and are called
Choices
Choice (4)  Response  

a.  Corresponding 

b.  Alternate 

c.  Vertically opposite 

d.  All of the above 
