plis jawab besok dikumpulkan
Volume kerucut
= 1/3 × π × r² × t
= 1/3 × 22/7 × (14 cm × 14 cm) × 30 cm
= 1/3 × 22/7 × 196 cm × 30 cm
= 6.160 cm²
Volume tabung
= π × r² × t
= 22/7 × (14 cm × 14 cm) × 15 cm
= 22/7 × 196 cm × 15 cm
= 9.240 cm²
Volume setengah bola
= 1/2 × 4/3 × π × r³
= 1/2 × 4/3 × 22/7 × (14 cm × 14 cm × 14 cm)
= 1/2 × 4/3 × 22/7 × 2.744 cm
= 4/3 × 22 cm × 196 cm
= 4/3 × 4.312 cm
= 5.749,33 cm³
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