Răspunsuri

2014-05-06T09:27:48+03:00
P=2l+2L=96
2(L+l)=96
l+L=48
l=1/3 * L
l=L/3

 L/3 +L=48 aducem la acelasi numitor
L+3L=144
4L=144
L=36
l=36/3=12