這這這 ...

來源: 於 2025-11-20 18:44:26 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

Let AB be 1 unit, the FH = [2* sqrt(3)/2 -1] /2      why?

The requested area ratio = (FH/AB)^2 = 2 - sqrt(3)