Răspuns :
L=2 × l ⇒ P=2 × (L+l) ⇔ 2 × (2*l+l) = 43,20m
↓
3*l= 43,20:2 = 21,60
l = 7,20m ⇒ L= 2*7,20 = 14,40m
↓
3*l= 43,20:2 = 21,60
l = 7,20m ⇒ L= 2*7,20 = 14,40m
PERIMETRU=(L+l)x2
P=43,2m
[tex]l= \frac{50}{100}= \frac{1}{2} [/tex]
[tex]l= \frac{L}{2} [/tex]
[tex]2x \frac{L}{2} +2L=43,2[/tex]
[tex]L+2L=43,2[/tex][tex]3L=43,2[/tex]
[tex]L=14,4[/tex]
[tex]l= \frac{14,4}{2} = \frac{7,2}{1}=7,2m [/tex]
P=43,2m
[tex]l= \frac{50}{100}= \frac{1}{2} [/tex]
[tex]l= \frac{L}{2} [/tex]
[tex]2x \frac{L}{2} +2L=43,2[/tex]
[tex]L+2L=43,2[/tex][tex]3L=43,2[/tex]
[tex]L=14,4[/tex]
[tex]l= \frac{14,4}{2} = \frac{7,2}{1}=7,2m [/tex]