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#include <iostream>
#include <cstdlib>
#include <math.h>
using namespace std;
int main()
{
    int n;
    scanf("%d",&n);
    double a,b,c,ha,hb,hc,ma,cosa,r,l,res,area;
    for (int i=0;i<n;i++)
    {
        scanf("%lf %lf %lf %lf",&a,&ha,&hb,&hc);
        //printf("%lf %lf %lf %lf\n",a,ha,hb,hc);
        ha*=3;hb*=3;hc*=3;
        c=(a*ha)/hc; b=(a*ha)/hb;
        ma=sqrt(0.5*b*b+0.5*c*c-0.25*a*a);
        cosa=ha/ma;
        r=(2*ma)/3;
        l=b*(b-sqrt(a*a-hb*hb))/ha;
//        printf("%lf\n",l*l+r*r-2*cosa*l*r);
        res=l*l+r*r-2*cosa*l*r;
        if (res<0) res=0; else res=sqrt(res);
        area=a*ha/2;
        printf("%.3lf %.3lf\n",area,res);
    }
    //system("PAUSE");
    return 0;
}
 

prog.cpp: In function ‘int main()’:
prog.cpp:8: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result
prog.cpp:12: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result

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