Răspuns :
l=L/2
2*L+2*l=300
2L+2*L/2=300
4L/2+2L/2=300
6L/2=300
L=300*2/6=600/6=100 lungimea
l=100/2=50 latimea
2*L+2*l=300
2L+2*L/2=300
4L/2+2L/2=300
6L/2=300
L=300*2/6=600/6=100 lungimea
l=100/2=50 latimea