#include<iostream>
#include<stdio.h>
#include<math.h>
using namespace std;
int main()
{
    double x1,y1,x2,y2,x3,y3;
    int n;
    while(n--)
    {
        cin>>x1>>y1>>x2>>y2>>x3>>y3;
         double  d1 = x1*x1+y1*y1;
      double  d2 = x2*x2+y2*y2;
      double  d3 = x3*x3+y3*y3;
      double  u = 0.5/(x1*y2-x2*y1+x2*y3-x3*y2+x3*y1-x1*y3);
      double  xp = u*(d1*y2-d2*y1+d2*y3-d3*y2+d3*y1-d1*y3);
      double  yp = u*(x1*d2-x2*d1+x2*d3-x3*d2+x3*d1-x1*d3);
      double  r = sqrt((xp-x1)*(xp-x1)+(yp-y1)*(yp-y1));
      printf("%.3f %.3f %.3f\n",xp,yp,r);
    }



    return 0;
}