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ZX-F5E542B68F2025年6月国际B卷 · 第 20 题
2025年6月国际B卷 · 原库模块 2 · Q20 原库参考解析
In isosceles triangle ABC, sides AB and AC are congruent. Point D divides side BC such that the length of \( BD \) is \( \frac{2}{7} \) of the length of \( BC \). Point E lies on side AB and point F lies on side AC such that when segments DE and DF are drawn, angle BED is congruent to angle CFD. If the length of \( BE \) is 14, what is the length of \( CF \)?
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