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三角函數伸縮與平移
Author:
brandonwong
GeoGebra
GeoGebra
GeoGebra
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兩位數加法
圓周公式的應用
祖冲之的期望：内棋与外棋
画直线等分三角形的面积
兩位數除以一位數（一）
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三角形的邊長關係
四角柱體（長方體）的截面
第一冊
君子球
Christmas Tree
Discover Topics
Statistical Characteristics
Prism
Median Line
Quadrilaterals
Similar Triangles