Jawab: Lp Balok = 2 x (p x l +l x t + p x t)
= 2 x (25 x 5 + 5 x 8 + 25 x 8)
= 2 x (125 + 80 + 200)
= 2 x 405
= 810 cm²
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Jawab: Lp Balok = 2 x (p x l +l x t + p x t)
= 2 x (25 x 5 + 5 x 8 + 25 x 8)
= 2 x (125 + 80 + 200)
= 2 x 405
= 810 cm²
Semoga Membantu