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固定周界的長方形面積變化
Author:
GeoGebra Institute of Hong Kong
Topic:
Area
,
Perimeter
,
Square
GeoGebra
New Resources
畫出對稱圖形
兩位數除以一位數（二）
兩組對邊相等和有直角的四邊形
兩位數加法
錐體建築師
Discover Resources
題六
二元一次方程式圖形
中点轨迹
正多邊形收斂
曲面
Discover Topics
Parametric Curves
Straight Lines
Planes
Rotation
Scatter Plot