Challenge 45: Treasure Hunt

Here is a set of challenge problems for your team. Have fun! By mastering the previous levels, your construction crew has learned many techniques useful for solving typical geometry problems. If the team does not solve some of these during its session, try to solve them on your own and report your findings in the next team session. Can you discover the pot of gold in this tale told by Thales de Lelis Martins Pereira, a high school teacher in Brazil? Hint: You might want to construct some extra lines in the challenge.