Question

Prize : 10 Poin

luas sebuah bola 2826cm². jika pendekatan nilai : 3,14. hitunglah volume bola tersebut

Answer 1

Verified answer

Luas = 4×phi×r^2
2826 = 4×3,14 ×r^2
2826 = 12,56 × r^2
2826 ÷ 12,56 = r^2
225 = r^2
r = akar kuadrat dari 225
r = 15 cm

volume = 4/3 × phi×r^3
= 4/3×3,14 ×15^3
= 4/3 × 3,14 × 3375
= 14130 cm^3