Are the lines in or out for soccer?

Answer 1

If the ball hits the line it's a FAIR BALL

Answer 2

The lines are part of the area they border. The lines around the outside of the field are part of the field.

Answer 3

No, the ball has to COMPLETELY cross the line in order for it to be called out. That means the entire circumfernce of the ball has to be on the out side of either the Touchline or Goal line.