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if指令-習題1
Author:
黃鉉喅
GeoGebra
New Resources
画直线等分三角形的面积
四邉形 (四年級) 教師版
兩位數除以一位數（一）
算柱 (兩位數)
兩位數加法
Discover Resources
Polygon Activity
線之極點定理 / pole of a line theorem
容積盒子(加蓋)
三次函数的极点
Copy of Triangular Number
Discover Topics
Cuboid
Polynomial Functions
Optimization Problems
Ellipse
Right Triangles