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Author:
Patrick Ngan
GeoGebra
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【案例】2018年全国1卷理科12题
算柱 (兩位數)
兩位數除以一位數（一）
拼砌四邊形
畫出對稱圖形
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梯形
Cube
P53_3b
面積
两角和的余弦公式几何证明
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Percentages
Surface
Addition
Similarity Transformation or Similarity
Coordinates