Odpowiedzi

2009-04-14T17:37:48+02:00
R = 2
H = 10

V = pp x H

Pp = πr²

Pp = 4π

V = 4π x 10 = 40π
2009-04-14T17:41:21+02:00
V= π r²h
V= 2²* 10 π
V=4* 10 π
V= 40 π cm³