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Penjelasan:
Luas permukaan balok:
2 × (pl + pt + lt)
= 2 × (180 + 48 + 60)
= 2 × 288
= 576 cm²
^__^ semoga bermanfaat
= 180 + 48 + 60 = 228 × 2 = 576
Luas permukaan balok tersebut adalah 576 cm²
SEMOGA MEMBANTU