(a) The curved surface area of a right circular cylinder is $176\mathrm{}\mathit{s}\mathit{q}\mathrm{cm}$ and its volume is $1232\mathrm{cu}\mathrm{cm}$. What is the height of the cylinder?
OR
(b) The largest sphere is carved out of a solid cube of side $21\mathrm{cm}$. Find the volume of the sphere.