New Orleans teenagers found a new proof of the Pythagorean Theorem 3 years ago
I think this approach briliant. However, I believe it can be simplified to avoid depending to trigonometry and geometry series, while keeping the original idea. I have no idea if it is similar to any existing proof of the theorom, but I put my thought into a post [1].
[1] https://eneim.notion.site/On-a-new-proof-of-the-Pythagorean-....