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变化的平行四边形
Author:
孙逸旻
Topic:
Parallelogram
GeoGebra
New Resources
常见四边形是否是双心四边形
百分數及其應用
第三周作业效果演示
正方形雪花图案
第八周作业2
Discover Resources
圖騰 DEMO
ggb-fs-a2
千年曆2
百分位數、四份位數和中位數
Quiz on Discriminant 判別式：測驗
Discover Topics
Surface
Triangles
Cube
Solids or 3D Shapes
Power Functions