IMO Mathematics Olympiad Class 9: Questions 150  154 of 919
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Question number: 150
» Lines, Angles and Quadrilaterals
Question
In a parallelogram, the sum of the angle bisectors of two adjacent angles is ________
Choices
Choice (4)  Response  

a.  45˚ 

b.  60˚ 

c.  90˚ 

d.  30˚ 

Question number: 151
» Lines, Angles and Quadrilaterals
Question
The value of x in the given figure is ________
Choices
Choice (4)  Response  

a.  118˚ 

b.  20˚ 

c.  72˚ 

d.  223˚ 

Question number: 152
» Lines, Angles and Quadrilaterals
Question
In the figure, if , then x = ________
Choices
Choice (4)  Response  

a.  45˚ 

b.  60˚ 

c.  29˚ 

d.  30˚ 

Question number: 153
» Lines, Angles and Quadrilaterals
Question
The given figure, PQRS is a trapezium in which ∠P= (y + 15) ˚, ∠Q= (3y + 25) ˚, ∠R = 75˚ and ∠S = x˚ then the value of x and y are________
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 154
» Lines, Angles and Quadrilaterals
Question
The measurement of a window is , if 12 doors are to be fixed in that window in four rows, measurements of each door should be________
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 

