IMO Mathematics Olympiad (SOF) Class 9: Questions 218  221 of 919
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Question number: 218
Question
Triangle PAB is formed by three tangents to circle with center O and, then angle ACB equals ________
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 219
Question
An exterior angle of a triangle is and the measure of the two remote interior angles are 25 degree and degree. x = ________.
Choices
Choice (4)  Response  

a.  25 

b.  20 

c.  24 

d.  29 

Question number: 220
Question
The number of spherical bullets each 0.6 cm in diameter be made out of a rectangular solid is ________
Choices
Choice (4)  Response  

a.  10200 

b.  10500 

c.  10550 

d.  10250 

Question number: 221
Question
A rectangle is divided into four smaller rectangles, as shown in the figure. Three of them have areas, and as indicated. Then the area of the shaded rectangle is ________
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 

