Răspuns :
[tex]l = \frac{7}{2} \: m[/tex]
[tex]A = {l}^{2} = {( \frac{7}{2} )}^{2} = \frac{ {7}^{2} }{ {2}^{2} } = \frac{49}{4} \: {m}^{2} [/tex]
[tex]l = 0.5 \: dam[/tex]
[tex]A = {l}^{2} = {0.5}^{2} = 0.25 \: {dam}^{2} [/tex]
[tex]A = {l}^{2} = {( \frac{7}{2} )}^{2} = \frac{ {7}^{2} }{ {2}^{2} } = \frac{49}{4} \: {m}^{2} [/tex]
[tex]l = 0.5 \: dam[/tex]
[tex]A = {l}^{2} = {0.5}^{2} = 0.25 \: {dam}^{2} [/tex]
daca l = 7/2 m = 3,5 m
atunci A(patratului) = (3,5m)² = 12,25 m² ;
daca l = 0,5 dam
atunci A(paratului) = (0,5 dam)² = 0,25 dam² ;
atunci A(patratului) = (3,5m)² = 12,25 m² ;
daca l = 0,5 dam
atunci A(paratului) = (0,5 dam)² = 0,25 dam² ;