#include <algorithm>
#include <vector>
#include <cfloat>
#include <string>
#include <cmath>
#include <set>
#include <cstdlib>
#include <map>
#include <ctime>
#include <iomanip>
#include <functional>
#include <deque>
#include <iostream>
#include <cstring>
#include <queue>
#include <cstdio>
#include <stack>
#include <climits>
#include <sys/time.h>
#include <cctype>

using namespace std;

typedef long long ll;


int main() {
  int t;
  cin >> t;
  for (int i = 0; i < t; i++) {
    double ans = DBL_MAX;
    for (int j = 0; j < 6; j++) {
      double x, y;
      cin >> x >> y;
      if (x > 0.4 && x <= 1.1 && y+0.1 >= 0) {
        ans = min(ans, atan2(y, x)*180/M_PI);
      }
    }
    cout << fixed << setprecision(10) << ans << endl;
  }

}