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練習 - 逆時針旋轉（三角形）
Author:
Lau Sir
Topic:
Triangles
GeoGebra
New Resources
四邉形 (四年級) 教師版
第八周作业
畫出對稱圖形
錐體建築師
兩組對邊相等的四邊形
Discover Resources
Rolling Circle
勾股树的副本
绕圆旋转004
折正五邊形
球体的体积推导
Discover Topics
Scatter Plot
Combinatorics
Geometric Mean
Pyramid
Circle