Lines, Angles and Quadrilaterals (IMO Mathematics Olympiad Class 9): Questions 75  78 of 126
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Question number: 75
» Lines, Angles and Quadrilaterals
Question
The given figure, ABCD is a trapezium in which ∠A= (x + 25) ˚, ∠B = y˚, ∠C = 95˚ and ∠D= (2x + 5) ˚ then the value of x and y are________
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 76
» Lines, Angles and Quadrilaterals
Question
In the given figure, PQRS is a trapezium in which PQ = 19 cm, PR = QS = 20 cm, RS = x cm and the distance between PQ and RS is 12 cm. Then the value of x is ________
Choices
Choice (4)  Response  

a.  58 cm 

b.  52 cm 

c.  43 cm 

d.  51 cm 

Question number: 77
» Lines, Angles and Quadrilaterals
Question
The angle between bisectors of the angles of a linear pair is ________
Choices
Choice (4)  Response  

a.  45˚ 

b.  30˚ 

c.  90˚ 

d.  180˚ 

Question number: 78
» Lines, Angles and Quadrilaterals
Question
Three parallel lines are cut by two transversals as shown in the given figure. If , and , then the length of QR is ________
Choices
Choice (4)  Response  

a.  16 cm 

b.  14 cm 

c.  10 cm 

d.  12 cm 
