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Author:
赵林
GeoGebra
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小数 的副本
兩位數除以一位數（一）
拼砌四邊形
三位數除以一位數（二）
算柱 (兩位數)
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五邊形與三角形等積
畢氏定理的證明
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含有任意量词与存在量词的最值问题
兩位數除以一位數（一）
Discover Topics
Right Triangles
Tangent Line or Tangent
Translation
Geometric Distribution
Difference and Slope