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劉虹圻 內心
Author:
呂麗珠
GeoGebra
New Resources
近似值：有效數字
Claude 解幾何題
兩組對邊相等的四邊形
算柱 (兩位數)
四邉形 (四年級) 教師版
Discover Resources
弦的定理
小數乘法
demo
劉徽的「割圓術」的副本
一次函数的副本
Discover Topics
Median Line
Random Experiments
Boxplot
Plane Figures or Shapes
Rectangle