Or, to be more precise, 35 feet is exactly 10.668 meters.
If I tell you something is 10.668 meters, I am measuring to the nearest millimeter. But if I tell you something is 10.66800 meters, I am claiming that I have measured this distance to the nearest hundredth of a millimeter (10 micrometers). = 10.66800 meters
But then, there is the number .