West longitude measures from _ degrees to _ degrees?

Question

What state in the forty-eight contiguous United States has the longest border with Canada?

Thanks

Answer 1

West longitude measures from 0 degrees to 180 degrees

http://images.slideplayer.com/32/9841202/slides/slide_6.jpg

https://en.wikipedia.org/wiki/Canada%E2%80%93United_States_border#Border_lengths

Answer 2

Thank you!