Răspunsuri

2014-05-10T17:57:44+03:00
Lc=2πR
Lc=2*4π=8π
.....................
18 3 18
2014-05-10T17:58:25+03:00
Lc=2πR
Lc=2ori4π=8π   sper ca te-am ajutat
11 4 11