Odpowiedzi

2010-03-29T20:33:06+02:00
6dm = 2πr² |: 2π
r²= 3dm²/π |√
r = √3dm²/π

V=4/3πr³ = 4/3*π * (√3dm/π)² = 4/3*π * 3dm/π *√3dm/π = 4√3dm/π