There are 1000 m of fiber optic [cable] in 1 kilometer.
A cable is an informal nautical unit of length equal to 185.2 meters.
1 meter = 10 decimetersSo, 30 meters = 30*10 = 300 decimeters
10
1
1000 meters = 1 km
how many meters are in 1 dam
1 inch=0.0254 meters
1 foot is about 0.3 meters.
1 mile = 1 609.344 meters
1 decimeter=0.1 meters
1 decimeter=0.1 meters