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矩形與圓
Author:
vinnyya
GeoGebra
New Resources
畫出對稱圖形
兩組對邊相等和有直角的四邊形
四邉形 (四年級) 教師版
第八周作业
拼砌四邊形
Discover Resources
quadrilaterals 1
線性規劃例10
Copy of 倒數計時
線的面化
圆之吻（Apollonius circles）
Discover Topics
Sine
Scalene Triangles
Solids or 3D Shapes
Arithmetic
Derivative