Question 854490
The area of the rectangle is {{{9*4=36}}} .
A square with an area of {{{36}}} must have a side length of {{{6}}}
because {{{6*6=36}}}
(or {{{6^2=36}}} if you prefer to write it that way).
A square with a side length of {{{6}}} for each of its {{{4}}} sides has a perimeter of
{{{4*6=highlight(24)}}}
(or {{{6+6+6+6=highlight(24)}}} if you prefer to calculate it that way).