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4/3 r³=288
4r³=864
r³=216
r=6
Pole pow kuli P=4πr²
Pole pow polkuli= 2πr²= 72π
288π = 4/3πr³
288 = 4/3r³/:4/3
216 = r³
r = ∛216
r = 6 cm
Pp = 1/2 * 4πr²
Pp = 2π6²
Pp = 2π*36
Pp = 72π cm²
Odp.: Pole powierzchni półkuli wynosi 72π cm²
288π = 4/3πr³
288 = 4/3r³/:4/3
216 = r³
r = 6
Pp = 1/2 * 4πr^2
Pp = 72π cm^2