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正方形
Author:
Yip Chi Wai
Topic:
Square
GeoGebra
New Resources
四邉形 (四年級) 教師版
兩組對邊相等和有直角的四邊形
兩位數除以一位數（二）
找出對稱軸
柱體建築師
Discover Resources
任務2
圓錐曲線---拋物線
三角形中位線
Pole & Polar
勝者即正義，可愛即正義~
增加數據對平均數的影響
Discover Topics
Natural Numbers
Expected Value
Planes
Differential Equation
Fractal Geometry