IMO Mathematics Olympiad Class 9: Questions 168  172 of 919
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Question number: 168
» Lines, Angles and Quadrilaterals
Question
If a straight line meets two other straight lines so as to make the sum of the two interior angles on one side of the transversal less than two right angles, then the other straight lines extended infinitely, will meet ________ the transversal
Choices
Choice (4)  Response  

a.  On 

b.  On another side of 

c.  Can’t be determined 

d.  On that side of 

Question number: 169
» Lines, Angles and Quadrilaterals
Question
The measure of an angle is twice times the measure of its supplementary angle. Then the angles are________
Choices
Choice (4)  Response  

a.  40˚, 160˚ 

b.  18˚, 72˚ 

c.  50˚, 200˚ 

d.  120˚, 60˚ 

Question number: 170
» Lines, Angles and Quadrilaterals
Question
In figure, lines a and b intersect at O. if, the value of y, z and u respectively is ________
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 171
» Lines, Angles and Quadrilaterals
Question
In a parallelogram PQRS, , then the measurement of ∠S is ________
Choices
Choice (4)  Response  

a.  75˚ 

b.  95˚ 

c.  100˚ 

d.  65˚ 

Question number: 172
» Lines, Angles and Quadrilaterals
Question
The angles of quadrilateral are in the ratio . All angles of a quadrilaterals are________
Choices
Choice (4)  Response  

a.  30˚, 90˚, 60˚, 20˚ 

b.  30˚, 60˚, 45˚, 15˚ 

c.  36˚, 60˚, 108˚, 156˚ 

d.  45˚, 20˚, 30˚, 60˚ 
