Answer
cylinder container
Work Step by Step
Using $V=lwh,$ with dimensions $8\times5\times3,$ then the volume of the box is
\begin{array}{l}\require{cancel}
V=lwh
\\
V=8(5)(3)
\\
V=120
.\end{array}
Using $V=\pi r^2h,$ with $r=3$ and $h=6,$ then the volume of the cylinder is
\begin{array}{l}\require{cancel}
V=\pi r^2h
\\
V=\pi (3)^2(6)
\\
V=54\pi
\\
V\approx169.65
.\end{array}
Hence, the $\text{
cylinder container
}$ holds more ice cream.