NL-NWO 1968 Problem 1

On the base $AB$ of the isosceles triangle $ABC$ , lies the point $P$ such that $AP : PB = 1 : 2$ . Determine the minimum of $\angle ACP$ .

Dataset text AI-MO AoPS. 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.