Răspunsuri

2014-09-12T10:54:23+03:00
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

2014-09-12T10:55:13+03:00
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