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SAS1
Author:
Jimmy Ma
GeoGebra
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斐波那契螺旋弧线（表格法）
直線的斜率：水平變化 & 鉛垂變化
撒针估算面积实验
常见四边形是否是双心四边形
双心四边形
Discover Resources
T3 Geobra
Dynamic HSV Color Platte
立方体截面
答重庆杨志友椭圆的定义
兩個骰子的點數和的副本
Discover Topics
Scalene Triangles
Polygons
Linear Functions
Trigonometry
Perimeter