IMO Level 1 Mathematics Olympiad (SOF) Class 9: Questions 134  139 of 919
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Question number: 134
» Lines, Angles and Quadrilaterals
Question
If , and, then x and y respectively are ________
Choices
Choice (4)  Response  

a.  30˚, 45˚ 

b.  60˚, 78˚ 

c.  20˚, 85˚ 

d.  30˚, 90˚ 

Question number: 135
» Lines, Angles and Quadrilaterals
Question
The angles of a triangle are in the ratio . The triangle is ________
Choices
Choice (4)  Response  

a.  Acute 

b.  Right 

c.  Isosceles 

d.  Obtuse 

Question number: 136
» Lines, Angles and Quadrilaterals
Question
In figure below, if , and , find ∠PVT, ∠VTU and ∠UVT.
Choices
Choice (4)  Response  

a.  54˚ 

b.  55˚ 

c.  56˚ 

d.  57˚ 

Question number: 137
» Lines, Angles and Quadrilaterals
Question
Diagonals of a rectangle PQRS intersect at O. If∠POS = 86˚, then ∠RQO is ________
Choices
Choice (4)  Response  

a.  47˚ 

b.  79˚ 

c.  50˚ 

d.  68˚ 

Question number: 138
» Lines, Angles and Quadrilaterals
Question
In the given figure, PQRS is a trapezium in which PQ = 9 cm, PR = QS = 10 cm, RS = x cm and the distance between PQ and RS is 8 cm. Then the value of x is ________
Choices
Choice (4)  Response  

a.  22 cm 

b.  17 cm 

c.  14 cm 

d.  21 cm 

Question number: 139
» Lines, Angles and Quadrilaterals
Question
In the given figure, , and , find
Choices
Choice (4)  Response  

a.  55˚ 

b.  45˚ 

c.  60˚ 

d.  50˚ 
