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r^2 = 216/6
r = Akar kwadrat 36
= 6 cm
2. nyusul
Smoga membantu.. :D
216 cm² = 6s²
216/6 = s²
√36 = s
s = 6 cm
2. volume bola = 30.808 cm³
v = 4/3 πr³
30.808 = 4/3 3,14 . r³
30.808 = 4,1866667 r³
r³ = 7358,5987
r = ∛7358,5987
r = 19,450541 cm
luas = 4πr² = 4.3,14 . 19,450541² = 4751,7436 cm² ≈ 4752 cm²