Răspuns :
1ha=
[tex] {hm}^{2} = {10}^{4} {m}^{2} [/tex]
1ar=
[tex] {dam}^{2} = {10}^{2} {m}^{2} [/tex]
[tex] {hm}^{2} = {10}^{4} {m}^{2} [/tex]
1ar=
[tex] {dam}^{2} = {10}^{2} {m}^{2} [/tex]