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2 * 4 * 5 = 40 cm³
pole powierzchni a*b + a*b + b*c + b*c + a*c + a*c
2*4 + 2*4 + 4*5 + 4*5 + 2*5 + 2*5 = 8 + 8 + 20 + 20 + 10 + 10 = 76 cm²
objętość 40 cm³
pole powierzchni 76 cm²