Răspuns :
L=2l
P=2(L+l)=0,54 dam
L+l=0,27 dam
2l+l=0,27 dam
3l=0,27
l=0,09 dam
L=2×0,09=0,19 dam
P=2(L+l)=0,54 dam
L+l=0,27 dam
2l+l=0,27 dam
3l=0,27
l=0,09 dam
L=2×0,09=0,19 dam