Trục đường tròn là đường thẳng đi qua tâm và:

\({S_{xq}} = \pi {r^2}h\)      

\({S_{xq}} = \pi rh\)

\({S_{xq}} = 2\pi rh\)

\({S_{xq}} = \dfrac{1}{3}\pi {r^2}h\) 

\(10\pi c{m^2}\)         

\(5\pi c{m^2}\)

\(40\pi c{m^2}\)

\(20\pi c{m^2}\)

\({S_{tp}} = 2\pi rh + 2\pi {r^2}\)

\({S_{tp}} = 2\pi rh\)

\({S_{tp}} = 2\pi {r^2}\)

\({S_{tp}} = 2\pi rh + \pi {r^2}\)

\({S_{tp}} = 2\pi rh + 2\pi {r^2}\)

\({S_{tp}} = {S_{xq}} + 2{S_d}\)

\({S_{tp}} = {C_d}\left( {r + h} \right)\)

\({S_{tp}} = 2{C_d}\left( {r + h} \right)\)

\(251,3c{m^2}\)

\(141,3c{m^2}\)          

\(172,8c{m^2}\)         

\(125,7c{m^2}\)

\(V = \dfrac{1}{3}\pi {r^2}h\)

\(V = \pi {r^2}h\)       

\(V = 2\pi {r^2}h\)                 

\(V = \pi {h^2}r\)