Jawaban:
836 cm²
Penjelasan dengan langkah-langkah:
Luas permukaan tabung = 2 × π × r (r + t)
L.p = 2 × π × r (r + t)
= 2 × 22/7 × 7 (7 + 12)
= 2 × 22 (19)
= 44 × 19
= 836 cm²
Maaf jika salah :)
Semoga membantu...
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Jawaban:
836 cm²
Penjelasan dengan langkah-langkah:
Luas permukaan tabung = 2 × π × r (r + t)
L.p = 2 × π × r (r + t)
= 2 × 22/7 × 7 (7 + 12)
= 2 × 22 (19)
= 44 × 19
= 836 cm²
Maaf jika salah :)
Semoga membantu...