Răspuns :
[tex]\it \ell = 72m=7200cm\\ \\ \mathcal{P}=4\cdot \ell=4\cdot7200=28800\ cm\\ \\ \mathcal{A}=\ell^2=72^2=5184\ m^2=0,5184\ hm^2\ (ha)[/tex]
[tex]\it \ell = 72m=7200cm\\ \\ \mathcal{P}=4\cdot \ell=4\cdot7200=28800\ cm\\ \\ \mathcal{A}=\ell^2=72^2=5184\ m^2=0,5184\ hm^2\ (ha)[/tex]