How To Solve Insanely HARD Viral Math Problem

This popular problem is stumping everyone, and many, many people emailed it to me. I give extra thanks Chaitanya from India who was the first person who sent it to me. I also thank David K, Achille Hui, and Seyed who found geometric solutions to this problem when I posted it to Math StackExchange. Watch the video for 3 ways to solve this problem My post on Math StackExchange Subscribe: