IMO Level 1 Mathematics Olympiad (SOF) Class 9: Questions 182  187 of 929
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Question number: 182
Question
All the three quadrilaterals ADEC, ABIH and BCGF are squares and if the area of and area of, then find the area of BCGF?
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 183
» Lines, Angles and Quadrilaterals
Question
If two supplementary angles are in the ratio 13: 5, then the angles is ________
Choices
Choice (4)  Response  

a.  120˚, 60˚ 

b.  125˚, 55˚ 

c.  130˚, 50˚ 

d.  145˚, 35˚ 

Question number: 184
» Lines, Angles and Quadrilaterals
Question
Two supplementary angles differ by 34˚. Then the angles are ________
Choices
Choice (4)  Response  

a.  107˚, 73˚ 

b.  74˚, 107˚ 

c.  120˚, 60˚ 

d.  72˚, 108˚ 

Question number: 185
» Lines, Angles and Quadrilaterals
Question
In a parallelogram ABCD, , then the measurement of ∠A is ________
Choices
Choice (4)  Response  

a.  120˚ 

b.  90˚ 

c.  75˚ 

d.  65˚ 

Question number: 186
» Lines, Angles and Quadrilaterals
Question
The given figure, ABCD is a trapezium in which ∠A= (x + 25) ˚, ∠B = y˚, ∠C = 95˚ and ∠D= (2x + 5) ˚ then the value of x and y are________
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 187
» 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.  43 cm 

b.  58 cm 

c.  52 cm 

d.  51 cm 
