Answer :

Let the circumcentre be (x,y)


As the circumcentre is equidistant from all the 3 points, we get


= .......i


And


....................ii


Squaring both sides of i and simplifying, we get


-2x-10y = -30


Squaring both sides of ii and simplifying, we get


10x + 2y = 46


Solving the above equations, we get


x =


y =


Radius of circumcircle is the distance between any point on the triangle and the circumcentre.


Radius = =


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