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正4正8黏合
Author:
Wu Xiao-Ren
GeoGebra
New Resources
圓的切線方程
活动三:应用性质
第八周作业1
正方形雪花图案
第八周作业2
Discover Resources
曲線下面積
My GGB Book
中一︰相似圖形(平移、旋轉、反射、放大縮小)
椭圆内光线的反射
求直角三角形的斜邊
Discover Topics
Multiplication
Equations
Secant Line or Secant
Continuity
Equilateral Triangles