$\displaystyle \frac{1}{9}\pi h^2$\displaystyle \frac{1}{9}\pi h^2

$\displaystyle \frac{1}{27}\pi h^2$\displaystyle \frac{1}{27}\pi h^2

$\displaystyle \frac{1}{9}\pi h^3$\displaystyle \frac{1}{9}\pi h^3

$\displaystyle \frac{1}{27}\pi h^3$\displaystyle \frac{1}{27}\pi h^3