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p = 10 cm
l = 8 cm
LP = 2(p × l) + 2(p × t) + 2(l × t)
376 = 2(10 × 8) + 2(10 × t) + 2(8 × t)
188 = (10 × 8) + (10 × t) + (8 × t)
188 = 80 + 10t + 8t
188 = 80 + 18t
18t = 188 - 80
18t = 108
t = 6
V = p × l × t
= 10 cm × 8 cm × 6 cm
= 480 cm³
Jadi volume balok tersebut adalah 480 cm³
p = 10 cm
l = 8 cm
luas permukaan balok = 2(pl + pt + lt)
376 = 2(10x8 + 10t + 8t)
376 = 2(80 + 18t)
376 = 160 + 36t
36t = 376 - 160
t = 216/36
t = 6
volume balok = p x l x t
= 10 x 8 x 6
= 480 cm3