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畫鐘面的副本
Author:
Chan Lai Man
,
GeoGebra Institute of Hong Kong
GeoGebra
New Resources
拼砌四邊形
錐體建築師
判斷球體
近似值：有效數字
兩組對邊相等和有直角的四邊形
Discover Resources
gyzpa 用圓近似拋物線
均分除法（整數÷整數）
day01_01
滑桿2
椭圆规
Discover Topics
Dilation
Continuity
Quadratic Equations
Plane Figures or Shapes
Standard Deviation