cover 9 dots with 4 lines

Details
Title | cover 9 dots with 4 lines |
Author | KrongMath 크롱 수학 |
Duration | 0:12 |
File Format | MP3 / MP4 |
Original URL | https://youtube.com/watch?v=Cb7NreEmG9c |
Description
There are 9 dots and we would cover all the dots with 4 lines.
Cheers!
#linepuzzle #mathpuzzle