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內切圓
Author:
陳禹妗
GeoGebra
New Resources
撒针估算面积实验
双心四边形
三角函数 的副本
比較五件物件的重量
垂直線的斜率
Discover Resources
正八角錐(旋轉，實體、透視)
最短距離
(004)80201辛宇婕
箭头平移动画
江苏省职校数学网络资源
Discover Topics
Linear Programming or Linear Optimization
Square
Special Points
Differential Calculus
Sine