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bantu jawab kk yang baikkk
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Kasih cara ya :)!
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Jawab: A
Lp Balok = 2pl + 2pt + 2lt
= (2 x 25 x 6) + (2x 25 x 15) + (2x 6 x 15)
= 300 + 750 + 180
= 1.230 cm²