We have the next formula to calculate the volume
[tex]V=\frac{1}{3}\cdot a^2\cdot h[/tex]
where a is the length of the side in the base and h is the height
a=11cm
h=15cm
we substitue the values in the formula
[tex]V=\frac{1}{3}\cdot11^2\cdot15=605\operatorname{cm}^3[/tex]
