平面几何的魅力确实大。记得上大学的时候，一个人号称能用直尺圆规三等分角，纠缠半天直到顺着他的思路指出错误才肯罢休。

来源: 方外居士于 2023-12-03 13:29:25 [旧帖] [给我悄悄话] 本文已被阅读：次

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