Any infinite length that it needs to be in order to get from one place to another.
By which you mean the length of a road? Sure, why not?
20km
5,00000000000cm or 692mm
Kilometers
In Malaysia, it cost RM20-30K to build a road of 100m in length.
2,500 km
6900.40589828 km
yes
2000
The Forth Road Bridge has an overall length of 8,242 feet, (2,512 metres).
The answer will depend on how deep (how far from the road) the frontage extends.
It is the length of a property alongside a roads - or roads, if at a corner.