Five Brothers' Kingdom

The famous kingdom of Five Brothers’ are prospering more than ever. Now, they want to have a flag of their own. Designing a flag requires a lot of geometrical skills and the kingdom has started a contest to find the proper designer with the necessary skills. They have published a problem on their new website. Whoever solves the problem first, will have the honor to design the prestigious flag of the kingdom. The problem is as follows:


This is a companion discussion topic for the original entry at https://toph.co/p/five-brothers-kingdom