IMO Level 1 Mathematics Olympiad (SOF) Class 9: Questions 170  174 of 929
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Question number: 170
» Lines, Angles and Quadrilaterals
Question
In a parallelogram PQRS, , then the measurement of ∠S is ________
Choices
Choice (4)  Response  

a.  65˚ 

b.  100˚ 

c.  75˚ 

d.  95˚ 

Question number: 171
» 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.  45˚, 20˚, 30˚, 60˚ 

d.  36˚, 60˚, 108˚, 156˚ 

Question number: 172
Question
ABCD is a trapezium, in which and E & F are points on AD & BC respectively. BD is joined. If , , and , then values of x and y are ________
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 173
» Lines, Angles and Quadrilaterals
Question
In the adjacent figure, PQRS is a rhombus whose diagonals PR and QS intersect at a point O if side PQ = 20 cm and diagonal QS = 24 cm, the length of diagonal PR is ________
Choices
Choice (4)  Response  

a.  30 

b.  28 

c.  32 

d.  34 

Question number: 174
» Lines, Angles and Quadrilaterals
Question
The sides BA and DC of the quadrilateral ABCD are produced as shown in the figure, then________.
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 

