Answer
$m^2$
Work Step by Step
Usually, floor space in houses is dozens of $m^2$. So the most reasonable unit here is $m^2$.
You need to log in to continue
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.