Euclides 歐幾里得
,
Ji he yuan ben 幾何原本
,
1966
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一〇八
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幾何原本 卷二
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乙邊上直角方形。</
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<
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<
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<
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xml:space
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直角方形、幷、等。</
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<
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<
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<
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<
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丁丙、矩線內直角形二、及乙丁、甲丁、上兩直角方形幷、等也。</
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直角方形、幷。</
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<
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<
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<
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<
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直角方形、幷、等也。</
s
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<
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方形幷。</
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<
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">與乙丙偕丁丙、矩線內直角形二、及甲乙上直角方形幷、等。</
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<
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乙丙、甲丙、上兩直角方形幷者。</
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