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過點切圓的動圓圓心軌跡
Author:
Wu Xiao-Ren
GeoGebra
New Resources
兩位數加法
【案例】2018年全国1卷理科12题
兩組對邊相等的四邊形
拼砌四邊形
畫出對稱圖形
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三角形的重心
test file
sym1
兩線段和圓3
圓錐曲線圖輯
Discover Topics
Standard Deviation
Planes
Random Variables
Similarity Transformation or Similarity
Scalene Triangles