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[洋葱] 2018广州25 固定角度求长度
Author:
洋葱教研
GeoGebra
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圓的切線方程
平行線的判定
异形操场
圓的基本性質
常见四边形是否是双心四边形
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Area of triangle with different base
小四平面圖形學習單
畢氏定理動畫
congruent (SSA,RHS)
柱體_
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Division
Geometric Distribution
Constructions
Incircle or Inscribed Circle
General Quadrilateral