You should have presented a complete solution or at least

本帖于 2026-05-19 12:38:29 时间, 由普通用户 askerfor 编辑
回答: EF 平行于 ACgot662026-05-16 08:18:36

a general framework to share your perceptions. That would be a basis for effective communication of ideas to others:) 

所有跟帖: 

[1]因为中线,EF与AC平行。因为两个面积知道的三角形,AC=2*EF.E,F是中点。sABC=6×16=96 -got66- 给 got66 发送悄悄话 (167 bytes) () 05/17/2026 postreply 07:54:49

Thanks for the interest. I checked area of the circle -askerfor- 给 askerfor 发送悄悄话 askerfor 的博客首页 (133 bytes) () 05/17/2026 postreply 11:04:53

步驟: -got66- 给 got66 发送悄悄话 (81 bytes) () 05/17/2026 postreply 12:59:28

Perfect. I believe your perspectives are elegant. -askerfor- 给 askerfor 发送悄悄话 askerfor 的博客首页 (30 bytes) () 05/17/2026 postreply 13:55:58

我的步骤有些绕,而且比较乱,等更正规的解法 -got66- 给 got66 发送悄悄话 (24 bytes) () 05/17/2026 postreply 17:02:15

你的解法很pure, 完全从面积关系入手 -askerfor- 给 askerfor 发送悄悄话 askerfor 的博客首页 (179 bytes) () 05/17/2026 postreply 19:47:47

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