IMO Mathematics Olympiad Class 8: Questions 472  476 of 1029
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Question number: 472
Question
A quadrilateral whose one diagonal is 4 cm. If the length of altitudes from opposite vertices on the diagonal is 2.5 cm and 1.5 cm, then the area of quadrilateral is ________.
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 473
Question
The number of surfaces in right circular cylinder is________.
Choices
Choice (4)  Response  

a.  1 

b.  4 

c.  3 

d.  2 

Question number: 474
Question
If the area of a cylinder with radius r = 1 and height h = 2 is equal to area of a cone with radius r = 1 and height h, the height of the cone is________.
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 475
Question
A quadrilateral whose one diagonal is 5.5 cm. If the length of altitudes from opposite vertices on the diagonal is 2.5 cm and 3.5 cm, then the area of quadrilateral is ________.
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 476
Question
ABC is a rightangled triangle with . AH is drawn perpendicular to BC where H lies on BC. If AB = 30 cm and AC = 50 cm, then BH = ________.
Choices
Choice (4)  Response  

a.  50 

b.  42 

c.  40 

d.  25 
