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π = 22/7
luas permukaan bola = 4πr²= 1232 cm²
1232 = 4 × 22/7 × r²
1232 = 44/7 × r²
r² = 7/44 × 1232
r² = 196
r =√ 196 = 14
jari-jari = 14 cm
diameter = 2× 14 = 28 cm
volume bola =4/3 πr³
= 4/3 × 22/7 × 14×14×14
= 88/3 × 392
= 11.498,66 Cm³