PUMaC 2007 · 几何（B 组） · 第 5 题
PUMaC 2007 — Geometry (Division B) — Problem 5
题目详情
- Four circles of radius 1 are each tangent to two sides (line segments) of a square and externally tangent to a circle of radius 3. What is the area of the space that is inside the square but not contained in any of the circles?
解析
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Original Explanation
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