NSTSE (National Science Talent Search Exam Unified Council) Class 9: Questions 220  226 of 2000
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Question number: 220
» Biology » Fundamentals Unit of Life
Question
The term “cell” was being given by
Choices
Choice (4)  Response  

a.  T. S. Schwann  
b.  M. J. Schleiden  
c.  A. V. Leeuwenhoek  
d.  Robert Hooke 
Question number: 221
» Mathematics » Areas of Parallelograms and Triangles
Question
The area of a square is , Its perimeter is ________.
Choices
Choice (4)  Response  

a.  36 cm  
b.  18 cm  
c.  72 cm  
d.  9 cm 
Question number: 222
» Mathematics » Circles
Question
The length l of a tangent, drawn from a point A to a circle is of the radius r. The shortest distance from A to the circle is
Choices
Choice (4)  Response  

a.  r  
b. 
 
c. 
 
d. 

Question number: 223
» Mathematics » Lines and Angles
Question
If D is a midpoint of the hypotenuse AC of a right triangle ABC then BD is equal to
Choices
Choice (4)  Response  

a.  AC  
b.  2AC  
c. 
 
d. 

Question number: 224
» Mathematics » Circles
Question
The least number of noncollinear points required to draw a circle passing through them is
Choices
Choice (4)  Response  

a.  Four  
b.  Two  
c.  Three  
d.  Nine 
Question number: 225
» Mathematics » Lines and Angles
Question
The difference of two complementary angles is . Then the angles are
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 226
» Mathematics » Lines and Angles
Question
In a the angle bisectors of the , meet at O. If then is
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 
