Răspuns:
1 hectar=10000 metri la pătrat
8000:10000=0,8ha
71.3:10000=0.00713ha
256.12:10000=0.025612ha
43:10000=0.0043ha
14.3dam:10000=1.43ha
3471dam:10000=3.471ha
0.21ar:10000=0.0021ha
325ar:10000=3.25ha
7km:10000=0.7ha
0.38:10000=0.38ha
21.7:10000=0.0021ha