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探究平行四邊形面積(2)
Author:
Ms Wong
GeoGebra
New Resources
三位數除以一位數（二）
兩組對邊相等和有直角的四邊形
錐體建築師
四邊形的特性
找出對稱軸
Discover Resources
圓心角
粒子的拋物線軌跡
滑桿動畫示範-3(畢氏定理)
尝试绘本
cube(方块堆叠)
Discover Topics
Geometry
Similar Triangles
Square
Statistics
Coordinates