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固定面積的圖形周界變化
Author:
phcheng
,
GeoGebra Institute of Hong Kong
GeoGebra
New Resources
GeoGebra笔记功能体验课件
判斷球體
兩組對邊相等和有直角的四邊形
算柱 (兩位數)
兩位數除以一位數（二）
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七巧板綜合
Trajectory of system: y'=sin(y)-y/2
圓錐
变形的正方形
三角形的三心
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Mathematics
Indefinite Integral
Terms
Pie Chart or Circle Chart
Vectors