Luas permukaan sebuah bola 36π cm² volume bola

4πr² = Luas bola
4πr² = 36π
r² = 36π ÷ 4π
r² = 9
r = 3

Volume bola
= 4/3 πr³
= 4/3 × π × 3³
= 4×9 × π
= 36π cm³

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#Semoga bermanfaat ^_^

L = 4 × phi × r^2
36 phi = 4 phi × r^2
r^2 = 36 phi / 4 phi
r^2 = 9
r = akar 9
r = 3
v = 4/3 × phi × r^3
= 4/3 × 3,14 × 3^3
= 4/3 × 3,14 × 27
= 113,04 cm^3