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The third side of a triangle
Author:
HSIEH, Li-Yi
GeoGebra
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科赫雪花
平行線的判定
正方形雪花图案
龙形曲线-分形龙2
镂空正方体案例对比
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內心與角平分線觀察
四角柱體(長方體)的截面
坐标变换
分數化百分數(以方程計算,增潤項目)
椭圆的中点弦的轨迹.许兴华数学
Discover Topics
Similar Triangles
Geometric Transformations
Isosceles Triangles
Incircle or Inscribed Circle
Integral Calculus