Question Number 14596 by tawa tawa last updated on 02/Jun/17
Commented by Tinkutara last updated on 03/Jun/17
$$\mathrm{What}\:\mathrm{are}\:\mathrm{the}\:\mathrm{radii}\:\mathrm{of}\:\mathrm{the}\:\mathrm{bottom} \\ $$$$\mathrm{circular}\:\mathrm{part}\:\mathrm{of}\:\mathrm{cylinder}\:\mathrm{and}\:\mathrm{ends}\:\mathrm{of} \\ $$$$\mathrm{frustum}\:\mathrm{of}\:\mathrm{the}\:\mathrm{cone}?\:\mathrm{Why}\:\mathrm{these}\:\mathrm{are} \\ $$$$\mathrm{different}?\:\mathrm{These}\:\mathrm{should}\:\mathrm{be}\:\mathrm{same}! \\ $$
Commented by Tinkutara last updated on 03/Jun/17
$$\mathrm{Volume}\:\mathrm{of}\:\mathrm{cylindrical}\:\mathrm{part}\:=\:\pi{r}^{\mathrm{2}} {h} \\ $$$$=\:\frac{\mathrm{22}}{\mathrm{7}}×\mathrm{28}×\mathrm{28}×\mathrm{5}\:=\:\mathrm{12},\mathrm{320}\:\mathrm{cm}^{\mathrm{3}} \\ $$
Commented by tawa tawa last updated on 03/Jun/17
$$\mathrm{God}\:\mathrm{bless}\:\mathrm{you}\:\mathrm{sir} \\ $$