[填空题]
Calculate the moment of inertm3p1e2 srb7l3rcagr7 fj 8e2:npe/g zia olzl,4p514vd2gaa ago9f 0 af yf a bicycle wheel 66.7 cm in diameter. The rim and tire have a combined mass of 1.25 kg. The mass of the hub cyd4 lzal50fo4g av1ag fp,92a an be ignored (why?). $kg \cdot m^2$