[数学] 请高手帮忙啦

1楼greenjyz greenjyz (......) 发表于 2009-5-1 21:13 显示全部帖子

回复 1#哈哈爸的帖子

My son did it, and I have not yet verified:

756.

Clue: to extend AB and DE to meet at F..

TOP

2楼greenjyz greenjyz (......) 发表于 2009-5-1 21:57 显示全部帖子

EEEEEEExcellent ! Simpler and clearer solution !

TOP

‹‹ 上一主题 | 下一主题 ››