(Company owner: The two images below are KakaoTalk captures posted by the original source DCIN as evidence)
I thought something was a little strange, so I did a search.The author’s argument is correct because rainfall is measured in mm.
However, I think the commander guessed that I had a beaker with only volume units written on it. Then, is it possible to say gibberish about dividing pi…?
Reference Q&A
https://www.kma.go.kr/communication/knowledge/spring_list.jsp?bid=spring&mode=view&num=1221&page=3&field=&text=