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sisi=∛volume
sisi=∛729
sisi=9cm
>luas permukaan =6(s X s )=6(9x9)=6(81)=486cm²
729 = s^3
s = 9 cm (jadi panjang sisinya 9 cm)
L permukaan kubus = 6 x s^2
= 6 x 9^2
= 6 x 81
= 486 cm^2