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同心圓
Author:
賴詩唐
GeoGebra
New Resources
百分數及其應用
GeoGebra数学资源(4-8年级)
科赫雪花
比較五件物件的重量
盈利與虧蝕
Discover Resources
長方形與正方形的面積
Torus
捷徑
拋物線3--平行四邊形法
平行四边形平移
Discover Topics
Similar Triangles
Plane Figures or Shapes
Parabola
Line Segment
Coordinates