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正三角形的旋轉
Author:
李春培
正三角形的旋轉
GeoGebra
New Resources
四邊形的特性
【案例】2013年安徽高考15题
算柱 (兩位數)
判斷球體
兩組對邊相等和有直角的四邊形
Discover Resources
畫三角形 題1c
平面與正立方體的截痕
circle: line from centre
频率与概率——投掷硬币的试验
用向量找北极星
Discover Topics
Similarity Transformation or Similarity
Geometric Mean
Curve Sketching
Straight Lines
Parametric Curves