PUMaC 2008 · 几何（A 组） · 第 9 题

PUMaC 2008 — Geometry (Division A) — Problem 9

(7 points) In tetrahedron ABCD with circumradius 2, AB = 2, CD = 7, and ∠ ABC = ∠ BAD = π . Find all possible angles between the planes containing ABC and ABD . 2

解析

暂无解答链接。

No solutions link available.