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Pc= 6 a kwadrat
Pc= 6 * 8 do kwadratu
Pc= 6 * 64=384 cm[kwadratowe]
8cm*8cm*6=384cm2
10cm*15cm*20cm=3000cm3
3000cm3*19g/cm3=57000g
96cm : 12 = 8cm
a = 8cm
P = 6a²
P = 6 × (8cm)² = 6 × 64cm² = 384cm²
1cm³ złota = 19g
10cm × 15cm × 20cm = 3000cm³
3000cm³ × 19g = 57000g = 57kg