IMO Level 1 Mathematics Olympiad (SOF) Class 9: Questions 392  395 of 929
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Question number: 392
Question
The area of a quadrilateral, one of whose diagonals is 30 cm long and the perpendiculars from the other two vertices are 19 cm and 11 cm respectively is ________
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 393
Question
A cylindrical vessel 60 cm in diameter is partially filled with water. A sphere, 60 cm in diameter is gently dropped into the vessel. To what further height will water rise in the cylinder?
Choices
Choice (4)  Response  

a.  25 cm 

b.  15 cm 

c.  40 cm 

d.  30 cm 

Question number: 394
Question
DEF is an equilateral triangle of side. S, T and U are midpoints of DE, EF and DF respectively. The area of triangle STU is ________
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 395
» Lines, Angles and Quadrilaterals
Question
In parallelogram ABCD. The altitudes corresponding to the sides AB and AD are respectively 4 cm and 5 cm. Find AD.
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 

