Răspunsuri

2014-05-12T17:15:27+03:00
L+L+l+l=740
2L+2l=740 /:2
l+L=370
L=l+20

l+l+20=370
2l+20=370
2l=370-20
2l=350
l=175

L=175+20
L=195
2014-05-12T17:16:19+03:00
P=2(L+l)=740⇒L+l=370
L=l+20⇒l+20+l=370, 2l=350, l=175 m, L=195 m