sugeng akan membuat kubus dari kertas dengan volume 1.728 cm³ luas kertas minimal yang di perlukan sugeng adalah
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Panjang sisi Kubus :
V = s³
1.728 = s x s x s
s³ = ³√1.728 cm³
s = 12 cm
Maka,
Luas kertas :
L = 6s²
L = 6 x s x s
L = 6 x 12 cm x 12 cm
L = 6 x 144 cm
L = 864 cm²
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V = s³
1728 = s³
s = ³√1728
s = ³√12³
s = 12 cm
L = 6 × s × s
L = 6 × 12 × 12
L = 6 × 144
L = 864 cm²
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