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Find the coordinates of the circumcentre...

Find the coordinates of the circumcentre of the triangle whose vertices are `(6,6),(8,-2)` and `(2,2)` Also, find its circum-radius.

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Let `A(8,6), B(8,-2)` and `C(2,-2)` be the vertices of the given triangle
let `P(x,y)` be the circumcentre of this triangle.
Then
`PA=PB=PC`
`(PA)^2=(PB)^2=(PC)^2`
Now,`(PA)^2=(PB)^2`
...
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