Mathematics [NSTSE (National Science Talent Search Exam Unified Council) Class 8]: Questions 149  155 of 1201
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Question 149
Question
MCQ▾The diagonals of a parallelogram ABCD intersect at O. If and , then is:
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question 150
Question
MCQ▾In a rhombus ABCD, the diagonals intersect at “O”. Then triangle ABD is:
Choices
Choice (4)  Response  

a.  An isosceles but not a right angled triangle  
b.  An isosceles right angled triangle  
c.  An equilateral triangle  
d.  A right angle but not an isosceles triangle 
Question 151
Question
MCQ▾ABCD is a rhombus. If , then is:
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question 152
Question
MCQ▾A diagonal of a rectangle is inclined to one side of the rectangle at . The acute angle between the diagonals is:
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question 153
Question
MCQ▾The quadrilateral formed by joining the midpoints of the sides of a quadrilateral ABCD, taken in order, is a rhombus if:
Choices
Choice (4)  Response  

a.  Diagonals of ABCD are perpendicular  
b.  ABCD is a parallelogram  
c.  Diagonals of ABCD are equal  
d.  ABCD is a rectangle 
Question 154
Question
MCQ▾The difference between the greatest and least numbers of is
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question 155
Question
MCQ▾If two adjacent angles of a parallelogram are in the ratio 2: 3, then the measure of the angles are:
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 
