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Diketahui :- Luas Permukaan Kubus = 384 cm²
Ditanya :
A. Rusuk = .....?
B. Volume Kubus = ....?
Penyelesaian :
A. Rusuk :
L = 6 × r × r
384 = 6 × r²
r² = 384 ÷ 6
r² = 64
r = √64
r = 8 cm
- Volume Kubus :
V = r³
V = (8 cm)³
V = 512 cm³
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