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正方形半角模型 (18 Oct. 2020)
Author:
wss86303511
GeoGebra
New Resources
兩位數除以一位數（二）
直角坐標平面上的旋轉變換
拼砌四邊形
四邊形的特性
畫出對稱圖形
Discover Resources
畢氏定理動態證明(四塊直角三角形移動)
quadrilaterals 6
Angle Sum of Triangle
Copy of 固定面積的圖形的周界變化
多邊形外角和
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Means
Prism
Rectangle
Difference and Slope
Planes