P = 80m
Putem considera ca lungimea este [tex] \frac{3}{3} [/tex], iar latimea [tex] \frac{2}{3} [/tex]
In dreptunghi avem in total : [tex] \frac{3}{3} [/tex] + [tex] \frac{3}{3} [/tex] (lungimea) + [tex] \frac{2}{3} [/tex] + [tex] \frac{2}{3} [/tex] (latimea) = [tex] \frac{10}{3} [/tex]
[tex] \frac{10}{3} [/tex] = 80m ⇒ [tex] \frac{1}{3} [/tex] = 80 : 10 = 8m
Latimea - 8m x 3 = 24m
Lungimea - 8m x 4 = 32m