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Perigal's Dissection
Author:
Alex CHIK
GeoGebra
GeoGebra 互動數學教室
http://www.geogebra.hk
New Resources
【案例】2013年安徽高考15题
兩組對邊相等的四邊形
GeoGebra笔记功能体验课件
球体的体积推导(优化版)
画直线等分三角形的面积
Discover Resources
Quiz on Compass Bearings 羅盤方位角:測驗
Cross sections of cube
數字的加減數線表示
圓系
扇形滚动(圆心角半径可变)
Discover Topics
Statistical Characteristics
Pyramid
Random Variables
Geometric Transformations
Orthocenter