There is no 50 km swimming event.
50km/hr
5km
(50 km) x (1,000 m/km) x (100 cm/m) = 5,000,000So [ 1cm=50km ] is a scale of 1 to 5 million.
50000m=50km
The height is12mk to 50km
50km in height
250,000 m
50km
50km/h (30mph)
50km
50km = 50000m
50/1 ×100%/1