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In triangle A B C , the equation of side...

In triangle `A B C` , the equation of side `B C` is `x-y=0.` The circumcenter and orthocentre of triangle are (2, 3) and (5, 8), respectively. The equation of the circumcirle of the triangle is
a) `x^2+y^2-4x+6y-27=0`
b) `x^2+y^2-4x-6y-27=0`
c) `x^2+y^2+4x-6y-27=0`
d) `x^2+y^2+4x+6y-27=0`

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