NSTSE (National Science Talent Search Exam Unified Council) Class 9: Questions 47  52 of 2000
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Question number: 47
» Mathematics » Lines and Angles
Question
The value of internal and the external bisectors of an angle is
Choices
Choice (4)  Response  

a. 


b. 


c. 


d.  Question does not provide sufficient data or is vague 

Question number: 48
» Mathematics » Quadrilaterals
Question
The diagonals of a parallelogram ABCD intersect at O. If and , then is:
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 49
» Mathematics » Circles
Question
The radius of a circle is 10 cm. AB and CD are two parallel chords 10.8 cm apart. If cm then CD is equal to
Choices
Choice (4)  Response  

a.  6 cm 

b.  20.8 cm 

c.  3 cm 

d.  12 cm 

Question number: 50
» Mathematics » Circles
Question
A circle with radius 3 units is intersected by a line at points R and T. The maximum possible distance between R and T is
Choices
Choice (4)  Response  

a.  6 units 

b.  units 

c.  units 

d.  1.5 units 

Question number: 51
» Mathematics » Quadrilaterals
Question
In a square ABCD, the diagonals bisect at “O”. Then triangle BOC is:
Choices
Choice (4)  Response  

a.  An equilateral triangle 

b.  A right angle but not an isosceles triangle 

c.  An isosceles but not a right angled triangle 

d.  An isosceles right angled triangle 

Question number: 52
» Mathematics » Triangles
Question
In a if and then the shortest and the largest sides of the triangle are
Choices
Choice (4)  Response  

a.  BC, AC 

b.  AB, AC 

c.  AB, BC 

d.  All of the above 
