\( \displaystyle1000ha ={{1000} \over {100}}\,km^2= 10\,km^2\)
\( \displaystyle125\,ha ={{125} \over {100}}\, km^2= 1 ,25\, km^2\)
\( \displaystyle12,5\,ha= {{12,5} \over {100}}\,k{m^2} = {{125} \over {1000}}\,k{m^2}\)\( \displaystyle= 0,125\,km^2\)
\( \displaystyle3,2\,ha ={{3,2} \over {100}}\,k{m^2}= {{32} \over {1000}}\,k{m^2}\)\( \displaystyle= 0,032\,km^2\).
