Answer:
The distance traveled is 357.54km.
Step-by-step explanation:
The situation is illustrated in the figure attached.
From the law of cosines the distance [tex]d[/tex] is given by
[tex]d^2 = (250km)^2+(115km)^2-2(250km)(115km)cos(155^o)[/tex]
[tex]d^2 = 127837.698 km^2[/tex]
[tex]\boxed{d = 357.54km}[/tex]