NSTSE (National Science Talent Search Exam Unified Council) Class 10: Questions 852  857 of 1484
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Question number: 852
» Mathematics » Triangles
Question
If is an equilateral triangle with side 6 cm, then the area of triangle formed by joining its mid points is ________.
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 853
» Mathematics » Coordinate Geometry
Question
The point (9, 6) is at a distance of ________ units from Xaxis.
Choices
Choice (4)  Response  

a.  6 units from negative direction 

b.  9 units from positive direction 

c.  12 units from negative direction 

d.  All of the above 

Question number: 854
Question
The top of a broken tree has its top end touching the ground at a distance 30 m from the bottom, the angle made by the broken end with the ground is . Then length of broken part = ________.
Choices
Choice (4)  Response  

a.  m 

b.  m 

c.  m 

d.  m 

Question number: 855
Question
An aero plane at an altitude of 150 m observes the angles of depression of opposite points on the two banks of a river to be and . The width of the river is ________.
Choices
Choice (4)  Response  

a.  180.6 m 

b.  236.7 m 

c.  245.9 m 

d.  98.2 m 

Question number: 856
Question
In a single throw of two dice, the probability of getting a sum of 7 is
Choices
Choice (4)  Response  

a. 


b. 


c. 


d.  All of the above 

Question number: 857
Question
The probability for a randomly selected number out of 1,2, 3,4, …. , 30 to be a prime number is
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 

