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what is a+b

 Dec 12, 2018
edited by Guest  Dec 15, 2018
 #1
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1.  In Triangle ABC, the circumcenter and orthocenter are collinear with vertex A. Which of the following statements must be true?

 

I believe that "2"  is true

 

The circumcenter is located at the intersection of the perpendicular bisectors of the sides of a triangle

The orthocenter is located at the intersection of the altitudes of a triangle

 

But, in an equilateral triangle, the perpendicular bisectors of the sides and the altitudes are the same

 

 

cool cool cool

 Dec 12, 2018

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