Răspunsuri

2014-11-11T19:07:35+02:00
L,l- dimensiunile.
P=2(L+l)
2(L+l)=300
L+l=150 (Semiperimetrul)
L=2l
2l+l=150
3l=150
l=150:3
l=50
L=100
2014-11-11T19:07:44+02:00
P =2x (l+L)
300 = 2 (l+2l)
300=2×3l
3l = 150 
l =50
L =100
sp =p ÷2 =300÷2=150