IMO Level 1 Mathematics Olympiad (SOF) Class 9: Questions 445  449 of 929
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Question number: 445
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: 446
Question
In the adjoining figure, , then is ________
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 447
Question
The locus of a point equidistant from the three sides of a triangle is ________
Choices
Choice (4)  Response  

a.  Orthocenter 

b.  Incenter 

c.  Centroid 

d.  Circumcenter 

Question number: 448
Question
The distance between the points P (4, 3) and Q (5,6) is calculated as
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


Question number: 449
Question
The and are right angles. If , and , then the length of XZ is ________
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 

