Teens come up with trigonometry proof for Pythagorean Theorem

Large old discussion[0] (949 points, April 2023, 269 comments), yesterday's [1](7 points, 1 day ago, 4 comments) [2](18 points, 13 hours ago, 3 comments)

[0]: https://news.ycombinator.com/item?id=35497696 [1]: https://news.ycombinator.com/item?id=40269677 [2]: https://news.ycombinator.com/item?id=40274980