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MathNet 2018-part-07 — 177 problems (EN–VI) Question 158

Math Olympiad Vault · MathNet 2018-part-07 — 177 problems (EN–VI)

Question 158

Show that there is an absolute constant $c \lt 1$ with the following property: whenever $\mathcal{P}$ is a polygon with area 1 in the plane, one can translate it by a distance of $\frac{1}{100}$ in some direction to obtain a polygon $\mathcal{Q}$, for which the intersection of the interiors of $\mathcal{P}$ and $\mathcal{Q}$ has total area at most $c$.