Hey There!
____________________________________
Answer:
--------------------------------------------------------------------
Length:
Length is the measurement of the distance from the initial point to the final point.
________________________________________________________
SI Unit:
The Si unit of length is meter, that means length is measured in meter units.
____________________________________
Relation:
The Relation between meter and kilometer is that they both are the units of the length, also the Kilometer(Km) is equals to the 1000 meters(m).
1Km = 1000 meter
1m = 0.001 Km
____________________________________
Best Regards,
'Borz'