[几何] 正三角形内动线段最大值

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12673zf Posted at 2025-4-5 23:43:43 |Read mode

Last edited by hbghlyj at 2025-4-5 23:59:53边长为2的正三角形ABC,D为AB边上一点,连CD,
E在CD上且AD=ED,连BE,
F在AB上且EF=BF,求AF的最大值?

画了一下图，答案似乎是$\frac{\sqrt{6}}{2}$

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2025-4-20 22:20 GMT+8

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