推 a0952775081:3:1? 06/05 22:49
→ piaggio:不是3:1 06/05 22:55
推 a0952775081:邊長我點錯個阿 努力中. 06/05 23:04
推 nogoodid:5:1 06/05 23:22
→ piaggio:5:1正解 06/05 23:22
推 alamabarry:無解 06/05 23:44
→ alamabarry:答錯了~~看出問題點了@@ 06/05 23:45
→ s00459:B對EF作垂線,利用邊長找角度 06/06 00:11
→ piaggio:感謝樓上!了解了~ 06/06 00:45
推 RedHerrings:我猜想一樓的板友也是用了取巧的辦法XDXD 06/07 17:21