jwb
V = (4/3)πr^3
A = 4πr^2
(4/3)πr^3 = 36π (jari")
= 36π x 3 : 4π
= 27
= 3 cm
A = 4π(3^2) (luas kulit bola)
= 4π(9)
= 36π
luas kulit bola = 36π cm^2
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jwb
V = (4/3)πr^3
A = 4πr^2
(4/3)πr^3 = 36π (jari")
= 36π x 3 : 4π
= 27
= 3 cm
A = 4π(3^2) (luas kulit bola)
= 4π(9)
= 36π
luas kulit bola = 36π cm^2