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4 cm * 4 cm = 16 cm2
80 cm3 : 16 cm2 = 5 cm
P = 2 * 4 * 4 + 2 * 4 * 5 + 2 * 4 * 5 = 32 + 40 + 40 = 112 cm2
Pozdrawiam ;))
80=4cm*4cm*x
4*4=16
80:4=5cm
Pole Podstawy 4cm*4cm=16cm²
Pole 2 podstaw 4cm*4cm*2= 32cm²
pole boku 5cm*4cm=20cm²
20cm²*4=80cm² ( 4 boczne ściany)
80cm²+32cm²=112cm²