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HKJHGJHG
Author:
chong yin tung
GeoGebra
New Resources
兩組對邊相等的四邊形
画直线等分三角形的面积
兩組對邊相等和有直角的四邊形
球體建築師
球体的体积推导(优化版)
Discover Resources
Quiz on Reflection 反射變換:測驗
圖形的內部、外部與周界
圓心角
我的第一个绘本
繪畫梯形
Discover Topics
Plane Figures or Shapes
Arithmetic Mean
Standard Deviation
Planes
Polygons