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探究平行四邊形面積(2)
Author:
Ms Wong
GeoGebra
New Resources
算柱 (兩位數)
小数 的副本
四邉形 (四年級) 教師版
找出對稱軸
兩位數除以一位數（一）
Discover Resources
XYAxix
兩邊和大於第三邊
規律幾何圖形珠串
Bisects Chord
GGB多页面案例
Discover Topics
Vectors 2D (Two-Dimensional)
Congruence
Square
Prism
Arithmetic Mean