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其他立體圖形
Author:
Carol
GeoGebra
New Resources
三角函数 的副本
撒针估算面积实验
常见四边形是否是双心四边形
活动三：应用性质
正方形雪花图案
Discover Resources
內心
xcxzczxczxczxczxczxc
Contour Lines 等高線
雙曲線1--焦點法
sin的平移與伸縮
Discover Topics
Functions
Arithmetic Operations
Power Functions
Optimization Problems
Surface