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Area of a triangle
Author:
HSIEH, Li-Yi
GeoGebra
New Resources
斐波那契螺旋弧线(表格法)
龙形曲线-分形龙
科赫雪花
异形操场
球体的截面
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拼貼
外擺線
特殊時鐘模擬
纏繞畫2
正方形
Discover Topics
Geometric Transformations
Similar Triangles
Statistics
Division
Parametric Curves