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r = 9 cm
t = 12 cm
Ditanya : V.Bandul = ...?
Jawab : V.Bandul = V.Kerucut + 1/2 V.Bola
V.Bandul = (1/3 × π × r² × t) + (1/2 × 4/3 × π × r³) ---------- 1/2 × 4/3 = 2/3
= (1/3 × 3,14 × 9 × 9 × 12) + (2/3 × 3,14 × 9 × 9 × 9)
= 1.017,36 + 1.526,04
= 2.543,4 cm³
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