PUMaC 2025 · 几何（B 组） · 第 1 题

PUMaC 2025 — Geometry (Division B) — Problem 1

Let ABC be a triangle with area 21 and BC = 7. Square XY ZT is such that X lies on segment AB , Y lies on segment AC , and Z and T lie on segment BC . Find the side length of square XY ZT .

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