IMO Level 1 Mathematics Olympiad (SOF) Class 9: Questions 127  131 of 929
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Question number: 127
» Lines, Angles and Quadrilaterals
Question
In the figure, if , then x = ________
Choices
Choice (4)  Response  

a.  70˚ 

b.  55˚ 

c.  45˚ 

d.  60˚ 

Question number: 128
Question
In the adjoining figure, circles with centres at L, M and N each have a radius of 2 units and are placed as shown here. If PQRS is the smallest rectangle that will enclose the 3 circles, what is the area of PQRS?
Choices
Choice (4)  Response  

a.  12 sq. units 

b.  16 sq. units 

c.  8 sq. units 

d.  32 sq. units 

Question number: 129
» Lines, Angles and Quadrilaterals
Question
The value of x in the given figure is ________
Choices
Choice (4)  Response  

a.  116˚ 

b.  118˚ 

c.  114˚ 

d.  120˚ 

Question number: 130
» Lines, Angles and Quadrilaterals
Question
In the given figure, then value of x is________.
Choices
Choice (4)  Response  

a.  110˚ 

b.  112˚ 

c.  105˚ 

d.  115˚ 

Question number: 131
» Lines, Angles and Quadrilaterals
Question
The given figure, WXYZ is a trapezium in which ∠x = k˚, ∠y = 95˚, ∠z= (2y + 25) ˚ and ∠w= (3y + 10) ˚ then the value of y and k are________
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 

