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學習單：三角形任一外角與內角關係
Author:
Tsai, Dung Jung
,
Tim Brzezinski
GeoGebra
New Resources
畫出對稱圖形
找出對稱軸
四邊形的特性
算柱 (兩位數)
球體建築師
Discover Resources
平行線截等比例
腳踏車輪圈
最短
Compare areas by cutting shapes Q2
時距計算機 (時針改變)
Discover Topics
Natural Numbers
Geometric Mean
Quadratic Equations
Cylinder
Dilation