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Author:
ddc1130
拋物線
GeoGebra
New Resources
兩位數加法
兩組對邊相等和有直角的四邊形
找出對稱軸
球體建築師
兩位數除以一位數（二）
Discover Resources
「相似三角形」任务4
祖暅之《綴術》：「緣冪勢既同，則積不容異。」
平行四邊形柱算體積(可以切開)
Copy of 固定面積的圖形的周界變化
relations of pavlue fisher method
Discover Topics
Fractal Geometry
Scatter Plot
Parabola
Vectors 3D (Three-Dimensional)
Probability