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Verified answer
Luas permukaan balok=2(p×l)+2(p×t)+2(l×t)432=2(p×8)+2(p×6)+2(8×6)
432=2×8p+2×6p+2×48
432=16p+12p+96
432-96=28p
28p=336
Panjang =12 cm
Maaf kalo salah...
Verified answer
Jawab :Rumus Luas permukaan pada Balok
= 2 (pl + pt + lt)
Maka :
Lp. balok = 2 (pl + pt + lt)
432 = 2 (p . 8 + p . 6 + 8 . 6)
432 = 2 (8p + 6p + 48)
432 / 2 = 14p + 48
216 = 14p + 48
216 - 48 = 14p
168 = 14p
14p = 168
p = 168 / 14
p = 12 cm
Jadi Panjangnya = 12 cm