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圖二 的複本
Author:
Michael Ma
,
GeoGebra Institute of Hong Kong
GeoGebra
New Resources
兩位數加法
兩組對邊相等和有直角的四邊形
三位數除以一位數（二）
【案例】圆柱体内放置一个大球六个小球
算柱 (兩位數)
Discover Resources
Rotational Symmetry - Cube
梯形
justin0704
勒洛三角形頂點B軌跡
高中數學指考學測
Discover Topics
Expected Value
Arithmetic Mean
Polygons
Rectangle
Percentages