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旋轉對稱 Rotational symmetry
Author:
TANG TSZ YUEN
Topic:
Symmetry
GeoGebra
New Resources
四邉形 (四年級) 教師版
【案例】2013年安徽高考15题
畫出對稱圖形
拼砌四邊形
判斷球體
Discover Resources
圓交與公切線
角α与-α的正弦函数关系
geo123
拼出三角形的副本
C60足球模型展开（单色版）
Discover Topics
Bar Chart or Bar Graph
Percentages
Matrices
Natural Numbers
Cuboid