Răspunsuri

2014-05-20T17:22:23+03:00
L=4l
P= 2(L+l)
2(L+l)=24.4
2(4l+l)=24.4
10l=24.4 |:10
l=2.44
L=4*2.44= 9.76
2014-05-20T17:24:33+03:00
L= 4l
P= 24,4
2(4l+l)=24,4
8l+2l=24,4
10l=24,4
l=24,4:10
l=2,44
L=4x2,44
L=9,76
DACA VERIFICI : 2x2,44=4,88
                           2x9,76=19,52
si 4,88+9,76= 24,4 - adica perimetrul :D