Scale.The types and uses
RF 1:50000
Map Distance /Ground distance.
Use Universal acceptance as can be converted andinterpreted in specific units like british measurement in d form of inches and miles
Verbal/Scale of Statement: No need to convert as it is given in statement form like 2cm to 1000mtrs in metric sytem
Linear /Graphical. For direct measurement of distances from d toposheet by the use of thread.
Also useful in deriving the new ratio in case of photographic enlargement and reduction.