NSTSE (National Science Talent Search Exam Unified Council) Class 9: Questions 254  256 of 2000
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Question number: 254
» Mathematics » Circles
Question
In the given figure, AOB and COD are two diameters of a circle with center O. If . Find .
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 255
» Mathematics » Lines and Angles
Question
At 9 O’clock the angle formed between the hands of a clock is
Choices
Choice (4)  Response  

a.  Reflex angle  
b.  Acute angle  
c.  Right angle  
d.  Straight angle 
Question number: 256
» Mathematics » Areas of Parallelograms and Triangles
Question
The area of a rhombus is . If one of its diagonals is 5 cm, the other diagonal is ________.
Choices
Choice (4)  Response  

a.  15 cm  
b.  10 cm  
c.  12 cm  
d.  7 cm 