Răspuns :
100[tex] dam^{2} [/tex]=1ha, 180[tex] dam^{2} [/tex]=1,8ha
1[tex] hm^{2} [/tex]=1ha, 3[tex] hm^{2} [/tex]=3ha
1[tex] hm^{2} [/tex]=1ha, 3[tex] hm^{2} [/tex]=3ha