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Lp = 2 (pxl + pxt + lxt)
= 2 ( 10x6 + 10x8 + 6x8)
= 2 ( 60 + 80 + 48)
= 2 ( 188)
= 376 cm²
jawabnya 376 cm²
= 2 × (10 × 6 ) + 2 × ( 10 + 6) × 8
= 120 + 32 × 8
= 120 + 256
= 376 cm²
Semoga membantu.