Odpowiedzi

2010-01-19T22:16:49+01:00
R=4cm
l=8cm
Pb = πrl
Pb=π*4*8=32π[cm²]
2010-01-20T00:12:28+01:00
R = 4cm
l = 8cm
Pb = πrl
Pb = π*4*8 = 32π cm²