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旋轉一物件
Author:
shihfeng
GeoGebra
New Resources
四邉形 (四年級) 教師版
異分母分數減法
四邊形的特性
兩位數加法
兩位數除以一位數（一）
Discover Resources
環形面積
区域面积
Quiz on Rotation 旋轉變換：測驗
四下_面積（一）(教師版)
微信公众号“sx880A8”第662期缅甸国旗the Republic of the Union of Myanmar
Discover Topics
Combinatorics
Derivative
Isosceles Triangles
Pie Chart or Circle Chart
Solids or 3D Shapes