Answer
$m$
Work Step by Step
A typical house lot is several meters in length. It would be best to use meters ($m$). The next highest unit, $km$ would be too large, and $cm$ would be too small.
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.