1 #include <iostream>
 2 #include <string>
 3 #include <map>
 4 #include <stdio.h>
 5 #include <math.h>
 6 using namespace std;
 7 #define pi acos(-1)
 8 
 9 
10 main()
11 {
12      int t;
13      double x1, y1, x2, y2, x3, y3, x4, y4, x5, y5;
14      double k1, k2, b1, b2, x, y;
15      while(scanf("%d",&t)==1&&t){
16          while(t--){
17          scanf("%lf %lf %lf %lf %lf %lf",&x1,&y1,&x2,&y2,&x3,&y3);
18          x4=(x2+x3)/2;
19          y4=(y2+y3)/2;
20          x5=(x1+x3)/2;
21          y5=(y1+y3)/2;
22          if(x1==x4){
23              k1=(y5-y2)/(x5-x2);
24              b1=y2-k1*x2;
25              x=x1;
26              y=k1*x1+b1;
27              printf("%.1lf %.1lf\n",x,y);continue;
28          }
29          if(x2==x5){
30              k1=(y4-y1)/(x4-x1);
31              b1=y1-k1*x1;
32              x=x2;
33              y=k1*x2+b1;
34              printf("%.1lf %.1lf\n",x,y);continue;
35          }
36          k1=(y4-y1)/(x4-x1);
37          k2=(y5-y2)/(x5-x2);
38          b1=y1-x1*k1;
39          b2=y2-x2*k2;
40          x=(b1-b2)/(k2-k1);
41          y=k1*x+b1;
42          printf("%.1lf %.1lf\n",x,y);
43        }
44      }
45      
46 }