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Petlach Wave
Author:
魏向东
GeoGebra
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漂亮的摇摆曲线
多邊形的面積
【案例】2018年全国1卷理科12题
平行線的斜率
【案例】2013年安徽高考15题
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花瓶
點到直線的距離 8:觀察平行線常數項的差距
Copy of 固定周界的長方形的面積變化
duality of regular polyhedron
Illusion-外凸的正方形
Discover Topics
Fractions
Kite
Triangles
Logarithm
Cylinder