NSTSE (National Science Talent Search Exam Unified Council) Class 7: Questions 382  388 of 1732
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Question number: 382
» Mathematics » Triangle and Properties
Question
The orthocenter of a triangle is the point where
Choices
Choice (4)  Response  

a.  The right bisectors of the sides of the triangle meet 

b.  The bisectors of the angles of the triangle meet 

c.  The medians meet 

d.  The altitudes meet 

Question number: 383
» Mathematics » Lines and Angles
Question
At 9 o’clock, the angle formed between the two hands of a clock is
Choices
Choice (4)  Response  

a.  Obtuse 

b.  Right 

c.  Acute 

d.  Question does not provide sufficient data or is vague 

Question number: 384
» Mathematics » Exponents and Powers
Question
The distance of the sum from the earth is km. In scientific notation the distance is
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 385
» Mathematics » Symmetry
Question
Which of the following alphabets has no line of symmetry?
Choices
Choice (4)  Response  

a.  K 

b.  R 

c.  U 

d.  W 

Question number: 386
» Mathematics » Perimeter and Area
Question
The area of a segment of a circle of radius 21 cm if the arc of the segment has a measure of is
Choices
Choice (4)  Response  

a. 


b. 


c. 


d.  Question does not provide sufficient data or is vague 

Question number: 387
» Mathematics » Perimeter and Area
Question
The area of a sector of a circle of radius 12 cm cut off by an arc which is 21 cm long is
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 388
Question
The mean of six numbers is 76. If one of the numbers is excluded the mean gets reduced by 6. The excluded number is
Choices
Choice (4)  Response  

a.  116 

b.  148 

c.  106 

d.  96 
