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MathNet 2016-part-02 — 184 problems (EN–VI) Question 82

Math Olympiad Vault · MathNet 2016-part-02 — 184 problems (EN–VI)

Question 82

Let $P$ and $P'$ be two unequal regular $n$-gons and $A$ and $A'$ two points inside $P$ and $P'$, respectively. Suppose $\{d_1, d_2, \dots, d_n\}$ are the distances from $A$ to the vertices of $P$ and $\{d'_1, d'_2, \dots, d'_n\}$ are the distances from $A'$ to the vertices of $P'$. Is it possible for $\{d'_1, d'_2, \dots, d'_n\}$ to be a permutation of $\{d_1, d_2, \dots, d_n\}$?