Răspuns :
P=2(L+l)
p=2(6+2)
p=2*8
p=16
p=2(8+5)
p=2*13
=26
p=2(15+9)
p=2*24
p=48
a) P=2x6+2x2= 12+4=16 cm
B) P=2x8+2x5=16x10=26dm
c) P=2x15+2x9=30+18=48m
P=2xL+ 2xl
B) P=2x8+2x5=16x10=26dm
c) P=2x15+2x9=30+18=48m
P=2xL+ 2xl