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簡單動畫
Author:
howard45123512
GeoGebra
New Resources
四邉形 (四年級) 教師版
錐體建築師
兩組對邊相等和有直角的四邊形
画直线等分三角形的面积
三位數除以一位數（一）
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有趣的切圓
乘法運算
直角
彈幕模擬
GeoGebra数学资源（4-8年级）
Discover Topics
Statistical Characteristics
Equilateral Triangles
Vectors 2D (Two-Dimensional)
Orthocenter
Cylinder