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利用圓來畫橢圓

Author:連琨銘

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判斷球體
第八周作业
找出對稱軸
拼砌四邊形
兩組對邊相等的四邊形

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弦切角是圓心角的一半
王宇揚2
Quiz on Translation 平移變換：測驗
數學傳播39卷4期, 平面幾何公式思考
展開圖

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Circle
Centroid or Barycenter
Sine
Numbers
Differential Calculus

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