IMO Mathematics Olympiad Class 9: Questions 188  192 of 919
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Question number: 188
» 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: 189
Question
In and , , are extended to X and Y respectively and . Under which congruency criterion, the triangles are congruent?
Choices
Choice (4)  Response  

a.  SAS 

b.  SAA 

c.  SSA 

d.  SSS 

Question number: 190
» 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: 191
» 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 

Question number: 192
» 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 
