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Introduce tangent ratio
Author:
VCChung
GeoGebra
New Resources
算柱 (兩位數)
找出對稱軸
兩位數加法
四邊形的特性
錐體建築師
Discover Resources
正方變十字
log functions
Copy of 固定周界的長方形的面積變化
perimeter of rectangle
旋轉對稱 Rotational symmetry
Discover Topics
Quadrilaterals
Polygons
Circumcircle or Circumscribed Circle
Median Line
Right Triangles