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64 cm³ = s³
∛64 cm² = s
s = 4 cm
Lp. Kubus = 6 * s²
= 6 * 4²
= 6 * 16
= 96 cm²
2) Lp. Kubus = 6 * s²
486 cm² = 6 * s²
486 cm² / 6 = s²
81 cm² = s²
√81 cm² = s
s = 9 cm
Vol. Kubus = s³
= 9³
= 729 cm³
s = 4 cm
jadi,L.permukaan kubus = 6 x s² = 6.4² = 6.16 = 96 cm²
2) L.permukaan = 6 x s²
486 = 6 x s²
s² = 486/6
s² = 81 ------> s = √81 = 9 cm
jadi,volume = s kubik
= 9 kubik = 729 cm kubik