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a=³√8cm³=2cm
p=6*a²= 6*2²=6*4=24cm²
V=a³
8cm³ = a³ / ∛
a = ∛8 cm³
a = 2 cm
pole powierzchni całkowitej
Pc = 6a²
Pc = 6 * (2cm)²
Pc = 6 * 4cm²
Pc = 24 cm²