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V = 729 cm³
maka :
V = sisi³
729 = sisi³
sisi = ∛729
sisi = 9 cm
jadi :
Lp = 6 x sisi²
= 6 x 9²
= 486 cm²
729=s³
s= 9
LP kubus= 6(s.s)
= 6(9.9)= 6.81=486 cm²
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