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Is this a prism 2
Author:
Shum Kwok Ching
GeoGebra
New Resources
兩位數加法
判斷球體
四邉形 (四年級) 教師版
兩組對邊相等和有直角的四邊形
三位數除以一位數（二）
Discover Resources
Angle Sum in a Triangle
橫向橢圓
Rotation（旋轉）
多次分割平行四邊形
正方形
Discover Topics
Division
Tangent Function
Standard Deviation
Arithmetic Mean
Translation