Răspuns :
Notam:
P=petrimetrul
l=latimea
L=lungimea
Rezolvare:
P=300
l=L/2
P=2(l+L) => 300=2(L/2+L ) => 300=L+2L => 300=3L =>L=100m
l=100/2 =>l=50
Deci l=50 si L=100
P=petrimetrul
l=latimea
L=lungimea
Rezolvare:
P=300
l=L/2
P=2(l+L) => 300=2(L/2+L ) => 300=L+2L => 300=3L =>L=100m
l=100/2 =>l=50
Deci l=50 si L=100