Odpowiedzi

2010-03-29T22:17:31+02:00
Objętość kuli:
Obk = 4/3×π×r³ = 4/3×π×3³ = 36πcm³

Objętość stożka:
Obs = 1/3×π×r²×h

Obliczenie h:
Obk = Obs
36π = 1/3×π×4²×h
36π = 16/3×π×h

h=36π÷16/3π = 36×3/16 = 6,75cm
2010-03-29T22:18:34+02:00
V kuli = 4/3π*3*3*3
V kuli = 36π

V stożka = 1/3Hπr² |*3
3V = Hπr²
H = 3V:πr²

H = 3*36π:(π*4*4)
H = 108π:16π
H = 6,75