Răspuns :
notam cu L=LUNGIMEA si l=latimea
L=25+2l
2(L+l)=356
2(25+2l+l)=356
50+4l+2l=356
50+6l=356
6l=356-50
6l=306
l=306/6
l=51
L=25+2*51
L=25+102
L=127
L=25+2l
2(L+l)=356
2(25+2l+l)=356
50+4l+2l=356
50+6l=356
6l=356-50
6l=306
l=306/6
l=51
L=25+2*51
L=25+102
L=127
P = 2L + 2l = 356 => L + l = 178
L = 2l + 25 => inlocuim in relatia de sus: 2l + 25 + l = 178
3l + 25 = 178
3l = 153
l = 51 => L = 178 - 51 = 127
L = 2l + 25 => inlocuim in relatia de sus: 2l + 25 + l = 178
3l + 25 = 178
3l = 153
l = 51 => L = 178 - 51 = 127