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用極座標做時鐘
Author:
唐宗浩
做一個摹擬時鐘如何?
GeoGebra
修改這個時鐘?
New Resources
三位數除以一位數（一）
兩組對邊相等的四邊形
四邊形的特性
柱體建築師
錐體建築師
Discover Resources
圖二
柯西不等式 (4)
內公切線長
test000
test1
Discover Topics
Piecewise Functions
Root
Rectangle
Triangles
Secant Line or Secant