Using r {\displaystyle r} and h {\displaystyle h} Using a {\displaystyle a} and h {\displaystyle h} Using r {\displaystyle r} and θ {\displaystyle \theta } Volume V = π h 2 3 ( 3 r − h ) {\displaystyle V={\frac {\pi h^{2}}{3}}(3r-h)} [1] V = 1 6 π h ( 3 a 2 + h 2 ) {\displaystyle V={\frac {1}{6}}\pi h(3a^{2}+h^{2})} V = π 3 r 3 ( 2 + cos ⁡ θ ) ( 1 − cos ⁡ θ ) 2 {\displaystyle V={\frac {\pi }{3}}r^{3}(2+\cos \theta )(1-\cos \theta )^{2}} Area A = 2 π r h {\displaystyle A=2\pi rh} [1] A = π ( a 2 + h 2 ) {\displaystyle A=\pi (a^{2}+h^{2})} A = 2 π r 2 ( 1 − cos ⁡ θ ) {\displaystyle A=2\pi r^{2}(1-\cos \theta )}