Răspuns :
[tex]P_{patratmic}=4*l_{patratmic}= 8cm[/tex]
=>[tex]l_{patratmic}= \frac{P_{patratmic}}{4}=2cm [/tex]
[tex]l_{patratmare}=3*l_{patratmic}=3*2=6cm[/tex]
=>[tex]l_{patratmic}= \frac{P_{patratmic}}{4}=2cm [/tex]
[tex]l_{patratmare}=3*l_{patratmic}=3*2=6cm[/tex]