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S0G38 三角形的內心
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学用数学
GeoGebra
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拼砌四邊形
畫出對稱圖形
第八周作业
GeoGebra笔记功能体验课件
兩組對邊相等和有直角的四邊形
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擴分、約分及比較大小
圓周角與圓心角的關係
摺紙模板
編織圓
計算
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Pyramid
Similar Triangles
Parallelogram
Unit Circle
Logic