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相同圖形的拼砌（有兩組平行線的四邊形）
Author:
ho ting chit
GeoGebra
New Resources
柱體建築師
球體建築師
三位數除以一位數（一）
算柱 (兩位數)
画直线等分三角形的面积
Discover Resources
餘弦的定理
多次分割平行四邊形
test geoebra1
建中科學班檢定
no10
Discover Topics
Rotation
Addition
Frequency Distribution
Differential Equation
Expected Value