Jawab: B
Lp balok = 2pl + 2pt + 2lt
= (2 x 25 x 12) + (2 x 25 x 16) + (2 x 12 x 16)
= 600 + 800 + 384
= 1.784 cm²
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Jawab: B
Lp balok = 2pl + 2pt + 2lt
= (2 x 25 x 12) + (2 x 25 x 16) + (2 x 12 x 16)
= 600 + 800 + 384
= 1.784 cm²