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= 3,14 × 5 × 5 ×12 - 1/3 × 5 × 5 × 12
=942-314
= 628 cm3
t=12 cm
Volume tabung diluar kerucut
=V tabung - V kerucut
=πr²t - ⅓πr²t
=(3/3 - ⅓) πr²t
=⅔ πr²t
=⅔×3,14×5²×12
=200×3,14
=628 cm³