"Hence find the equation of the circle passing through A.B and C."

I understand how the centre is 7,1 and therefore it can go in2 the equation (x-a)^2+(y-^2=r^2 however when i looked at the answer sheet it said that r^2 was 26 when the answer i got was 25

in order 2 get 25 i used the distance formula between A and B 2 find the diameter and halfed it 2 get 5 then squared 2 get 25......is this correct?????

thanks

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# 2001 paper 2 7d

Started by hssc11045, May 17 2004 04:21 PM

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