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rusuk 2 = 4cm
total luas = 6x3x3 + 6x4x4 = 54 + 96 = 150cm2
v = s × s × s
27 = s × s ×s
s = 3 cm
kubus 2
v = s × s × s
64 = s × s × s
s = 4 cm
Lp 1 = 6 × s × s = 6×3×3 = 54
Lp 2 = 6 × s × s = 6×4×4 = 96
total Lp = 54 + 96 = 150