PUMaC 2008 · 几何（A 组） · 第 2 题

PUMaC 2008 — Geometry (Division A) — Problem 2

(2 points) Consider a convex polygon P in space with perimeter 20 and area 30. What is the volume of the locus of points that are at most 1 unit away from some point in the interior of P ?

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