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坐標測量
Author:
chanfushun
GeoGebra
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异形操场
斐波那契螺旋弧线（表格法-可动态调节）
三角函数 的副本
比較五件物件的重量
撒针估算面积实验
Discover Resources
EnergyMath 2-3 複數乘法的幾何意義
龍騰4_1-1習6-1
鏡射再旋轉
材料
Direct and Inverse Variation 正變與反變
Discover Topics
Complex Numbers
Polygons
Surface
Solids or 3D Shapes
Percentages