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Author:
marcolee201314
GeoGebra
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撒针估算面积实验
平行線的判定
科赫雪花
直線的斜率：水平變化 & 鉛垂變化
正方形雪花图案
Discover Resources
相似三角形
伸縮變換
Angle between Line and Plane
畢氏定理 (勾股定理) <Pythagorean theorem>
割补法
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Coordinates
Trigonometric Functions
Circumcircle or Circumscribed Circle
Quadrilaterals
Inequalities