[tex]\begin{gathered} \text{Volume of a cylinder (V) = }\pi\times r^2\times h \\ r\text{ = radius = 6cm} \\ h\text{ = height = 23cm} \\ \pi=\text{ 3.14} \end{gathered}[/tex][tex]\text{Volume of large cylindrical oatmeal box = 3.14 }\times6^2\times23=2599.92\text{ cubic cm}[/tex]
To the nearest whole number the volume = 2600 cubic cm
[tex]V=2600cm^3[/tex]