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Author:
昌SIR
rectangular
GeoGebra
New Resources
兩組對邊相等的四邊形
兩位數除以一位數（二）
直角坐標平面上的旋轉變換
柱體建築師
畫出對稱圖形
Discover Resources
仿生獸
可积准则
平行四邊形的面積 的複本
平行四边形
椭圆的离心率
Discover Topics
Geometry
Bar Chart or Bar Graph
Rotation
Prism
Right Triangles