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waaachen

Author:陳兪宏

waaachen

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四邊形的特性
判斷球體
第八周作业
兩位數除以一位數（一）
兩組對邊相等和有直角的四邊形

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立體圖形的旋轉對稱
mario
中間人星星
數學傳播39卷4期, 平面幾何公式思考
Introduction to Rectangular Coordinates

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Pythagoras or Pythagorean Theorem
Dilation
Complex Numbers
Fractal Geometry
Incircle or Inscribed Circle

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