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圆锥的侧面展开图3D动画的副本
Author:
张健
,
qianqianhouhou
拖动点C
GeoGebra
New Resources
算柱 (兩位數)
四邊形的特性
【案例】2018年全国1卷理科12题
拼砌四邊形
兩位數除以一位數（一）
Discover Resources
幾何原理
正七邊形2
圓與切線
Sequence指令練習(正n邊形面積的展開)
三角測量02
Discover Topics
Similarity Transformation or Similarity
Vectors
Centroid or Barycenter
Special Points
Vectors 3D (Three-Dimensional)