A child is looking for his father. He went 90 meters in the East before…

A child is looking for his father. He went 90 meters in the East before turning to his right. He went 20 meters before turning to his right again to look for his father at his uncle's place 30 meters from this point. His father was not there. from there he went 100 meters to the North before meeting his father in a street. How far from the starting point did the son meet his father?