RU-ALLRUSSIAN 1985 Problem 10
ABCDE is a convex pentagon. A' is chosen so that B is the midpoint of AA', B' is chosen so that C is the midpoint of BB' and so on. Given A', B', C', D', E', how do we construct ABCDE using ruler and compasses?
Dataset text NuminaMath olympiads. Quoted with source.
Solutions
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