T = gets.to_i

T.times{
    mindeg = 100000
    gets
    6.times{
        x, y = gets.split.map(&:to_f)
        ang = Math.atan2(y, x)
        deg = ang * 180.0 / Math::PI + 0.0000001
        # puts "x=#{x}, y=#{y}, ang=#{ang}, deg=#{deg}"
        if(deg > 0)
            mindeg = [mindeg, deg].min
        end
    }
    puts mindeg
}