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Kubus dgn sisi = 10cm
ρ = 7,8 gr/cm³
Ditanya: massa besi (m)....?
jawab:
V kubus = s³
V kubus = 10³ = 1000 cm³
m = ρ V
m = 7,8 x 1000
m = 7800 gram = 7,8 kg
Semoga membantu..........