Penjelasan dengan langkah-langkah:
Luas permukaan
= 2 × (pl + pt + lt)
= 2 × [(18 × 8) + (18× 7) + (8 × 7)]
= 2 × (144 + 126 + 56)
= 2 × 326
= 652 cm²
semoga membantu maaf jika ada kesalahan _/\_
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Penjelasan dengan langkah-langkah:
Luas permukaan
= 2 × (pl + pt + lt)
= 2 × [(18 × 8) + (18× 7) + (8 × 7)]
= 2 × (144 + 126 + 56)
= 2 × 326
= 652 cm²
semoga membantu maaf jika ada kesalahan _/\_