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優良作品2(薇如)
Author:
Ching-Hui Chou
GeoGebra
New Resources
找出對稱軸
畫出對稱圖形
近似值：有效數字
球體建築師
兩位數加法
Discover Resources
國道計程收費
判斷柱體 3
餘弦定理的圖形證明2
Name the prism 2
正方形纸片剪出正三角形（顶点在边上）
Discover Topics
Definite Integral
Line Segment
Calculus
Solids or 3D Shapes
Reflection