KöMaL 2013 B4580
The sides of a triangle form a geometric progression, and its angles form an arithmetic progression. Prove that the triangle is equilateral.
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.