trasnformam hm in dac 2hm=20 dam
a)Aparc=L·l=20·5=100 dam
b)transformam 5 dam in m=50. calcuam aria uneia dintre alei=2·50=100m
(nu prea am inteles ce scria la cealalta alee pe margine nu sevede clar dar presupun ca era tot 2 m) a doua alee are tot 100m. aria aleeilor este 100+100=200m
c)Acultivata=Atotala-Aaleeilor
trasformam 100 dam in m =1000m
Acultivata=1000-200=800m