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三角形的內角和+內心與外心
Author:
陳煚昇
GeoGebra
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【案例】圆柱体内放置一个大球六个小球
画直线等分三角形的面积
兩位數除以一位數(一)
【案例】2013年安徽高考15题
兩組對邊相等的四邊形
Discover Resources
垂心
simson line
王宇揚2
量角器
拋物線5--包絡線法
Discover Topics
Fractal Geometry
Sine
Difference and Slope
Incircle or Inscribed Circle
Random Experiments