[填空题]
Calculate the moment of inert43ckfd0*r:rw7nz rafwfe lof ;6/*k xia of a bicycle wheel 66.7 cm in diameter. The - 4iqf1eeo+ dr 4ddj1crim and tire have a combined mass of 1.25 kg. The mass of t4id1e fjq1 erd-cod 4+he hub can be ignored (why?). $kg \cdot m^2$