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香港的硬幣
Author:
kwwong
GeoGebra
New Resources
找出對稱軸
兩組對邊相等和有直角的四邊形
【案例】圆柱体内放置一个大球六个小球
三位數除以一位數（一）
拼砌四邊形
Discover Resources
Quiz on Solving Right Triangles (Finding Angles) 解直角三角形：測驗2（求角度）
三角形
拋物線6--包絡線法
sin(x) 的函數圖形的副本
拋物線軌跡
Discover Topics
Histogram
Plane Figures or Shapes
Orthocenter
Linear Equations
Ratios