Oblicz pole powierzchni kuli o promieniu 3 cm .
Dane:r = 3cmszukane:P = ?P = 4πr²P = 4π * 3² P = 4π * 9 P = 36π cm²Odp: Pole powierzchnii kuli wynosi 36π cm².
r = 3 cm
P = 4 π r²
P= 4 π 3² = 36 π cm²
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Dane:
r = 3cm
szukane:
P = ?
P = 4πr²
P = 4π * 3²
P = 4π * 9
P = 36π cm²
Odp: Pole powierzchnii kuli wynosi 36π cm².
r = 3 cm
P = 4 π r²
P= 4 π 3² = 36 π cm²