We learn the answers to those questions by considering the arrangement of cities of refuge in ancient Israel.
نَجِدُ ٱلْجَوَابَ حِينَ نَتَأَمَّلُ فِي تَرْتِيبِ مُدُنِ ٱلْمَلْجَإِ ٱلَّذِي عَمِلَ بِهِ ٱلْإِسْرَائِيلِيُّونَ قَدِيمًا .‏