#include<stdio.h>
#include<math.h>

double tool(int x1,int y1, int x2, int y2){
    return sqrt((x1-x2)*(x1-x2) + (y1-y2)*(y1-y2));
}

double masahat(double a,double b, double c){
    double p = (a+b+c)/2;
    return sqrt(p) * sqrt(p-a) * sqrt(p-b) * sqrt(p-c);
}
double max(double a, double b){
    if(a>b) return a;
    return b;
}

int main(){
    int n;
    scanf("%i",&n);
    double maxNesbat = -1;
    for(int i = 0; i < n; i++){
        int Ax,Ay,Bx,By,Cx,Cy,Dx,Dy;
        scanf("%i %i %i %i %i %i %i %i",&Ax,&Ay,&Bx,&By,&Cx,&Cy,&Dx,&Dy);
        double AB = tool(Ax,Ay,Bx,By);
        double BC = tool(Bx,By,Cx,Cy);
        double CD = tool(Cx,Cy,Dx,Dy);
        double AC = tool(Ax,Ay,Cx,Cy);
        double AD = tool(Ax,Ay,Dx,Dy);

        double masahat4zeli =  masahat(AB,BC,AC) + masahat(AC,AD,CD);
        double mohit = AB + BC + CD + AD;

        maxNesbat = max(maxNesbat, masahat4zeli/mohit);

        printf("%.2lf\n%.2lf\n",masahat4zeli,mohit);
    }
    printf("%.2lf\n",maxNesbat);
}