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P*L*T = 4x* 3x* 2x
= 24x³
24x³ = 1536
x³ = 1536 / 24
x³ = 64
x = ∛64
x = 4
panjang = 4 * 4 = 16 cm
lebar = 3 * 4 = 12 cm
tinggi = 2 * 4 = 8 cm
luas permukaan = 2PL + 2PT + 2LT
= 2(16)(12) + 2(16)(8) + 2(12)(8)
= 384 + 256 + 192
= 832 cm²
p : l : t = 4 : 3 : 2
V = p X l X t
V = 4a X 3a X 2a
V = (4X3X2) a³
V = 24 a³
24 a³ = 1536
a³ = 1536/24
a³ = 64
a = ∛64
a = 4
p = 4a = 4X4 = 16 cm
l = 3a = 3X4 = 12 cm
t = 2a = 2X4 = 8 cm
L.permukaan
= 2(pXl) + 2(pXt) +2(lXt)
= 2(16X12) + 2(16X8) + 2(12X8)
= 2(192) + 2(128) + 2(96)
= 384 + 256 + 192
= 832 cm²