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Copy of 選擇合適的「中間人」
Author:
Tsang Ngan
,
GeoGebra Institute of Hong Kong
GeoGebra
New Resources
兩組對邊相等的四邊形
異分母分數減法
四邊形的特性
【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）
Discover Resources
河內塔 (Tower of Hanoi)
國道etag收費
Expectation Value 期望值
二次函數圖形(1)
笛卡兒之心
Discover Topics
Line Segment
Rectangle
Combinatorics
Right Triangles
Median Line