Răspuns :
P=l+l+L+L
P=2l+2L = 128 /:2
l+L=64
L=3l
l+3l=64
4l=64
l=16
L=16*3
L=48
Aria=l*L
Aria=48*16
Aria=768
P=2l+2L = 128 /:2
l+L=64
L=3l
l+3l=64
4l=64
l=16
L=16*3
L=48
Aria=l*L
Aria=48*16
Aria=768
P=128
P=2l+2L
L=3l
2l+2*3L=128
2l+6l=128
8l=128
l=128:8
l=16
L=3*16
L=48
A=L*l=16*48
A=768
P=2l+2L
L=3l
2l+2*3L=128
2l+6l=128
8l=128
l=128:8
l=16
L=3*16
L=48
A=L*l=16*48
A=768