Răspunsuri

2014-05-14T16:40:06+03:00
L=2L.1/3
P=2(L+l)
L+l=2730:2=1365
L+2L/3=1365
5L=1365.3=4095
L=819 cm
l=2.819/3=546 cm
A=L.l=819.546=447 174 cm²