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任務5
Author:
gklwong
Topic:
Triangles
GeoGebra
New Resources
兩位數加法
兩組對邊相等和有直角的四邊形
兩位數除以一位數（一）
四邉形 (四年級) 教師版
画直线等分三角形的面积
Discover Resources
Mobius strip
正割函數與餘割函數
多邊形周界A
三角形
凸透镜成像
Discover Topics
Poisson Distribution
Linear Equations
Median Line
Cone
Addition