[幾何] 請教一題問題
題目是圖形故用圖片
http://imgur.com/VciO7Be
角BAC=120度
比較AP+BP+CP與AB+AC之大小
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推
03/12 16:27, , 1F
03/12 16:27, 1F
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03/12 16:29, , 2F
03/12 16:29, 2F
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03/12 16:33, , 3F
03/12 16:33, 3F
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03/12 16:38, , 4F
03/12 16:38, 4F
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03/12 16:38, , 5F
03/12 16:38, 5F
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