Question 989049
Many, many 2cm by 2cm square can be used to cover the rectangle without any spaces or overlapping.
It is possible because {{{72}}} and {{{108}}} are both divisible by {{{2}}} .
You can start by lining up in a row {{{54}}} such 2cm by 2cm squares along one of the {{{108cm}}} long sides,
because {{{108cm/"2 cm"=54}}} .
Then you would add more rows like that for a total of
{{{72cm/"2 cm"=36}}} rows.