Răspuns :
L = 3l
P = 2(L + l) = 2(3l + l) = 2 · 4l = 8l
P = 1416 m
⇒8l = 1416
l = 177
L = 3 · 177 = 531
P = 2(L + l) = 2(3l + l) = 2 · 4l = 8l
P = 1416 m
⇒8l = 1416
l = 177
L = 3 · 177 = 531