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Volume Bangun = Volume Balok + VolumeTabung
= ( P × L × T ) + ( Luas Alas × Tinggi )
= ( 28 × 28 × 20 ) + ( ( × r² ) × T )
= ( 784 × 20 ) + ( ( × ( 28 ÷ 2 ) ² ) × 20 )
= 15.680 + ( ( × 14² ) × 20 )
= 15.680 + ( ( × 196 ) × 20
= 15.680 + ( 616 × 20 )
= 15.680 + 12.320
= 28.000 Cm³