NSTSE (National Science Talent Search Exam Unified Council) Class 9: Questions 21  23 of 2000
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Question number: 21
» Mathematics » Circles
Question
The radius of a circle is 2.5 cm. AB and CD are two parallel chords 2.7 cm apart. If cm then CD is equal to
Choices
Choice (4)  Response  

a.  5.2 cm 

b.  3 cm 

c.  7.3 cm 

d.  8 cm 

Question number: 22
» Mathematics » Lines and Angles
Question
Two adjacent angles whose sum is is called
Choices
Choice (4)  Response  

a.  Linear pair 

b.  Complementary angles 

c.  Vertically opposite angles 

d.  Question does not provide sufficient data or is vague 

Question number: 23
» Mathematics » Lines and Angles
Question
In the figure find x if .
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 

