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有多少正方体
Author:
孟宝兴
GeoGebra
New Resources
兩組對邊相等和有直角的四邊形
兩組對邊相等的四邊形
拼砌四邊形
画直线等分三角形的面积
算柱 (兩位數)
Discover Resources
方格紙上畫平行四邊形2
緯度、日照、影長
五角星动画
編織圓
我的第一个绘本
Discover Topics
Similarity Transformation or Similarity
Root
Statistics
Reflection
Confidence Interval