Odpowiedzi

2010-04-15T16:44:03+02:00
V=4/3πr³
Pc=4πr²

V=4/3π27
V=36π[cm³]

Pc=4π9
Pc=36π[cm²]
2010-04-15T16:47:24+02:00
Dane:
r=3cm
p=?
v=?
p=4(pi)r2
v=4/3(pi)r3

p=4(pi)*3(2)
p=36(pi)cm2

v=4/3(pi)3(3)
v=36cm3