Kilometres. Kilometres. Kilometres. Kilometres.
Cubic kilometres.
You would use square kilometres.
i would say kilometres
The basic metric unit for length is the metre. Rivers would be measure in kilometres (1,000s of metres)
Square kilometres.
Metres or kilometres in metric; yards or miles in Imperial
A direct line between the two cities would measure 3789 kilometres or 2354.4 miles. Using current roads, if driving, the shortest distance between them is 4702.6 kilometres of 2922.1 miles.
Kilometres or miles.
Miles or kilometres.
Square kilometres.
Kilometres