Răspuns :
P= 26 : 2 = 13
L= 6 si l= 7
....sau....
L=7 si l=6
| =》6 si 7 sunt numere consecutive
L= 6 si l= 7
....sau....
L=7 si l=6
| =》6 si 7 sunt numere consecutive
P=26cm
L=l+1
P=2*(l+1+l)
p=2l+1+2l
P=4l+2
26=4l+2
4l=26-2
2l=24
l=24:4
l=6cm
L=6+1
L=7cm
P=2*(7+6)
P=2*13
P=26
L=l+1
P=2*(l+1+l)
p=2l+1+2l
P=4l+2
26=4l+2
4l=26-2
2l=24
l=24:4
l=6cm
L=6+1
L=7cm
P=2*(7+6)
P=2*13
P=26