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What are the coordinates of the circumcenter of a triangle with vertices A(−1, 1) , B(5, 1) , and C(−1, −1) ?

 

https://us-static.z-dn.net/files/d24/7c825685ddcaa45d39722e71cec9344d.png

Guest Nov 19, 2017
 #1
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This is a right triangle.....the circumcenter will be at the midpoint of the hypotenuse

 

The endpoints of the hypotenuse are (-1, -1)   and (5, 1)

 

So  the midpoint - and circumcenter -  is   [ ( 5 - 1) / 2 , (1 - 1 ) / 2 ]  =  ( 2 , 0)

 

 

cool cool cool

CPhill  Nov 19, 2017

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