Pc = 2*6cm*12cm+2*12cm*20cm+2*6cm*20cm = 144cm²+480cm²+240cm² = 864cm²
pole jednej ściany sześcianu = 864cm²/6 = 144cm²
a² = 144cm²
a = √144cm²
a = 12cm
V = 12cm*12cm*12cm
V = 1728cm³
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Pc = 2*6cm*12cm+2*12cm*20cm+2*6cm*20cm = 144cm²+480cm²+240cm² = 864cm²
pole jednej ściany sześcianu = 864cm²/6 = 144cm²
a² = 144cm²
a = √144cm²
a = 12cm
V = 12cm*12cm*12cm
V = 1728cm³
864\6+144
a=pierwiastek z 144=12
v=12*12*12=1728