KöMaL 2016 C1386
How many different convex figures can be put together out of four congruent isosceles right-angled triangles?
Official text KöMaL. Quoted with source.
Solutions
No solution is on olymmath yet. Official and human solutions come first when they arrive. AI solutions come after them, with a label.
Similar problems
These problems have the most words in common with this statement.