PUMaC 2021 · 几何（B 组） · 第 4 题
PUMaC 2021 — Geometry (Division B) — Problem 4
题目详情
- Triangle △ ABC has AB = 8, AC = 10, and AD = 33, where D is the midpoint of BC . Perpendiculars are drawn from D to meet AB and AC at E and F , respectively. The length √ a b of EF can be expressed as , where a, c are relatively prime positive integers and b is c square-free. Compute a + b + c .
解析
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Original Explanation
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