3 ms·Well it proves a lot in my opinion. Feet are really non uniform in length by a lot.by kiriakasis 8y agoWell it proves a lot in my opinion. Feet are really non uniform in length by a lot.autokad 8y agogo to google and type "about definition"Moru 8y agoYou can't both say that meter isn't exact enough when meassuring 1/3 and also say that 25 mm wrong on a food is ok...autokad 8y agoI didnt say exact, just not easily done aka intuitive. a concept probably lost on you ages ago