Lines, Angles and Quadrilaterals (IMO Mathematics Olympiad Class 9): Questions 79  83 of 126
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Question number: 79
» 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 EF is ________
Choices
Choice (4)  Response  

a.  2 cm  
b.  4 cm  
c.  3.5 cm  
d.  3 cm 
Question number: 80
» Lines, Angles and Quadrilaterals
Question
In the figure , and then ∠4 is________
Choices
Choice (4)  Response  

a.  172˚  
b.  134˚  
c.  126˚  
d.  136˚ 
Question number: 81
» Lines, Angles and Quadrilaterals
Question
The angles P, Q, R, S in the parallelogram PQRS are________
Choices
Choice (4)  Response  

a.  90˚, 60˚, 90˚, 60˚  
b.  90˚, 90˚, 90˚, 90˚  
c.  50˚, 60˚, 30˚, 40˚  
d.  50˚, 45˚, 80˚, 15˚ 
Question number: 82
» Lines, Angles and Quadrilaterals
Question
The given figure WXYZ is a parallelogram then the values of and are________
Choices
Choice (4)  Response  

a.  78˚, 35˚  
b.  20˚, 40˚  
c.  50˚, 60˚  
d.  35˚, 70˚ 
Question number: 83
» Lines, Angles and Quadrilaterals
Question
The measurement of a window is , if 6 doors are to be fixed in that window in two rows, measurements of each door should be________
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 
