Triangles and Circles (IMO Mathematics Olympiad (SOF) Class 9): Questions 34  38 of 79
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Question number: 34
» Triangles and Circles
Question
A running track is the ring formed by two concentric circles. It is 45 feet wide. The circumferences of the two circles differ by about ________
Choices
Choice (4)  Response  

a.  230 feet 

b.  200 feet 

c.  260 feet 

d.  280 feet 

Question number: 35
» Triangles and Circles
Question
In the given figure, and QS, RS are the bisectors of and, then ________
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 36
» Triangles and Circles
Question
In the figure, AD is the bisector of of, then ________
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 37
» Triangles and Circles
Question
If two medians of a triangle are equal, then the triangle is ________
Choices
Choice (4)  Response  

a.  Scalene triangle 

b.  Equilateral triangle 

c.  Right angle triangle 

d.  Isosceles triangle 

Question number: 38
» Triangles and Circles
Question
An exterior angle of a triangle is 139˚ and one of the interior opposite angle is 49˚. Then the other two angles of a triangle are
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 

