Triangles and Circles (IMO Mathematics Olympiad (SOF) Class 9): Questions 74  78 of 79
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Question number: 74
» Triangles and Circles
Question
In an isosceles triangle ABC, with , the bisectors of and intersect each other at O. join A to O, then________
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 75
» Triangles and Circles
Question
In the adjoining figure, , then is ________
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 76
» Triangles and Circles
Question
The locus of a point equidistant from the three sides of a triangle is ________
Choices
Choice (4)  Response  

a.  Circumcenter 

b.  Centroid 

c.  Incenter 

d.  Orthocenter 

Question number: 77
» Triangles and Circles
Question
The and are right angles. If , and , then the length of XZ is ________
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 78
» Triangles and Circles
Question
In the figure , and . Then x equals ________
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 

