, 2026

Suppose that each side of the square has length $n~\text{cm}$, where $n$ is a whole number. Then the perimeter
of the square is $\$4\times n~\text{cm}\$.$ This means that the perimeter of the square in
centimetres is a multiple of $4$. Of
the choices given, only $32~\text{cm}$ is a multiple of $4$.

(We note that in this case, the square has side length $n=8~\text{cm}$.)