PUMaC 2008 · 组合（A 组） · 第 2 题

PUMaC 2008 — Combinatorics (Division A) — Problem 2

(2 points) Draw a regular hexagon. Then make a square from each edge of the hexagon. Then form equilateral triangles by drawing an edge between every pair of neighboring squares. If this figure is continued symmetrically off to infinity, what is the ratio between the number of triangles and the number of squares?

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