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Area of triangle with different base
Author:
Pong Hai Lin
Topic:
Area
,
Straight Lines
GeoGebra
New Resources
兩位數除以一位數（二）
三位數除以一位數（一）
畫出對稱圖形
兩位數除以一位數（一）
四邉形 (四年級) 教師版
Discover Resources
方格紙上畫平行四邊形1
常態分配
Copy of 圓方程 (標準式與一般式)
行星運動
Similar Figures (QMSS)
Discover Topics
Translation
Cone
Numbers
Congruence
Probability