Răspunsuri

2014-05-23T21:38:44+03:00
L-l=39
L=l+39

P=2l+2L=2l+2(l+39)

2l+2l+78=702
4l=702-78
4l=624
l=156

L=156+39=195
1 5 1
2014-05-23T22:12:15+03:00
L-l=39
perimetru' = 2(l+L)=702
l+L=702:2
    =351
l+L=351
L-l=39    ⇒l+L+L-l=39+351
2L=390
L=390:2
L=195
l=351-L
=351-195
l=156