Dik : Diameter = 8 cm
Tinggi = 12 cm
Jari - jari = r = 1/2 × d
r = 1/2 × 8 cm
r = 4 cm
Dit : Luas...?
Jawb : L tabung tanpa tutup = πr² + 2πrt
= 3,14 × (4 cm)² + 2 × 3,14 × 4 cm × 12 cm
= 3,14 × 16 cm² + 2 × 3,14 × 4 cm × 12 cm
= 50,24 cm² + 301,44 cm²
= 351.68 cm²
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Verified answer
Dik : Diameter = 8 cm
Tinggi = 12 cm
Jari - jari = r = 1/2 × d
r = 1/2 × 8 cm
r = 4 cm
Dit : Luas...?
Jawb : L tabung tanpa tutup = πr² + 2πrt
= 3,14 × (4 cm)² + 2 × 3,14 × 4 cm × 12 cm
= 3,14 × 16 cm² + 2 × 3,14 × 4 cm × 12 cm
= 50,24 cm² + 301,44 cm²
= 351.68 cm²