import java.util.*;

public class Main {
    public static void main(String[] args) throws Exception {
        Scanner koko = new Scanner(System.in);
        int n = koko.nextInt();
        double[][] x = new double[n][6];
        double[][] y = new double[n][6];
        double[] ans = new double[n];
        double[] sp = new double[n];
        for(int i=0; i<n; i++){
            sp[i]=1-Math.cos(Math.toRadians(50));
            for(int j=0; j<6; j++){
                x[i][j] = koko.nextDouble();
                y[i][j] = koko.nextDouble();
                if(sp[i]>=(1-x[i][j])&&y[i][j]>Math.sin(Math.toRadians(-10))){
                    sp[i]=1-x[i][j];
                    if(x[i][j]>1){
                        ans[i] = Math.toDegrees(Math.acos(1));
                    }else{
                    ans[i] = Math.toDegrees(Math.asin(y[i][j]));
                    }
                }
            }
            System.out.println(ans[i]);
        }
    
    }
}