I'm back on the main site Scratching after my 10 month Scratch break! I'm warming up with this project I made this evening. :)
This project explains the most common proof (by simple rearrangement) of the Pythagoras theorem. For more information, check out:
In a nutshell, the Pythagoras theorem tells us how to find the third side of a right triangle given the other two. Enjoy (maybe even learn)!