Răspunsuri

2014-05-14T15:24:08+03:00
2014-05-14T15:24:22+03:00
L = 1/2 din L => l = 1/2 · 18 => l = 9
P = 2 ( L + l )
P = 2 ( 18 + 9 )
P = 2 · 27
P = 54
1 5 1