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徵人解數學問題:
Jun 16th 2013, 06:50

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徵人解數學問題
Jun 16th 2013, 02:11

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題目: 一個正方形 邊長1 正方形內點一點 由該點延出3條線至 正方形的周(可以至點 該3線須等長 該線所割出的3個面相等 求 由點延伸至周的線段長 20點!!...
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