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February 1st, 2014, 06:44 PM  #1 
Newbie Joined: Feb 2014 Posts: 2 Thanks: 0  Coordinates in Isosceles Triangle
Hi, If I have an isosceles triangle ABC, where  AB  =  BC , and I have given the coordinates of point B and point A and I have also given the length of the one side:  AB , 1) how can I calculate the coordinates of point C? 2) In case if I know the length of all the sides, how can I calculate the coordinates of point C? 
February 1st, 2014, 09:16 PM  #2 
Global Moderator Joined: Dec 2006 Posts: 20,472 Thanks: 2039 
(1) Insufficient information (2) There are normally two possibilities for the location of C. 
February 1st, 2014, 09:46 PM  #3 
Newbie Joined: Feb 2014 Posts: 2 Thanks: 0  Re: Coordinates in Isosceles Triangle
Hi, Thank you for your reply Could you please explain how is C going to be in two positions? 
February 2nd, 2014, 05:52 AM  #4 
Global Moderator Joined: Dec 2006 Posts: 20,472 Thanks: 2039 
The second triangle is simply the reflection of the first in the line through the given vertices.


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coordinates, isosceles, triangle 
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