tolong dibantu ya kak :)
❒Panjang diagonal bidang kubus
[tex]\sf \: b = s \sqrt{2} [/tex]
[tex]\sf \: b = 8 \sqrt{2} [/tex]
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❒Panjang diagonal ruang kubus
[tex]\sf \: d = s \sqrt{3} [/tex]
[tex]\sf \: d = 8 \sqrt{3} [/tex]
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❒Volume kubus
V = s × s × s
V = 8 × 8 × 8
V = 64 × 8
V = 512 cm³
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❒Luas permukaan kubus
Lp = 6 × s × s
Lp = 6 × 8 × 8
Lp = 6 × 64
Lp = 384 cm²
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