IMO Mathematics Olympiad (SOF) Class 9: Questions 164  168 of 919
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Question number: 164
» Lines, Angles and Quadrilaterals
Question
The supplementary angle of an angle is one fifth of itself. Then the angle of its supplement are________
Choices
Choice (4)  Response  

a.  150˚, 30˚ 

b.  160˚, 20˚ 

c.  160˚, 130˚ 

d.  150˚, 45˚ 

Question number: 165
Question
In the adjoining figure, point P the intersection of lines l1 and l2 has coordinates (a, b) as shown here. Which of the following could be the ordered pair (a, b)?
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 166
» Lines, Angles and Quadrilaterals
Question
The supplementary angle of an angle is one third of itself. Then the angle of its supplement are________
Choices
Choice (4)  Response  

a.  120˚, 360˚ 

b.  60˚, 180˚ 

c.  135˚, 45˚ 

d.  60˚, 120˚ 

Question number: 167
Question
Find the value of
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


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 
