IMO Mathematics Olympiad Class 9: Questions 348  351 of 919
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Question number: 348
» Lines, Angles and Quadrilaterals
Question
In parallelogram ABCD. . The altitudes corresponding to the sides CD and AD are respectively 9 cm and 11 cm. Find AD.
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 349
Question
ABC is triangle in which BE, CF are medians. If , and , then the area of is________
Choices
Choice (4)  Response  

a.  240 

b.  120 

c.  102 

d.  360 

Question number: 350
Question
Which of the points A (0, 6), B (2, 4), C (4, 0), D (0, 2), E (0, 5), F (4, 4) do lie on the Yaxis?
Choices
Choice (4)  Response  

a.  B and E only 

b.  A, D, E 

c.  A and D only 

d.  A, F, E 

Question number: 351
Question
In triangle ABC, the altitude from A to BC meets BC at D, and the altitude from B to CA meets AD at H. if , and , if then the length of HD is ________
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 

