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Quiz on Special Lines in Triangles 三角形內的特殊線：測驗
Author:
Alex CHIK
GeoGebra
gMath 互動數學教室
http://www.gmath.hk
New Resources
sanjiaohanshu
國旗 (Claude 版)
第八周作业
近似值：有效數字
兩組對邊相等的四邊形
Discover Resources
風車
工具箱
三角形内切圆
Copy of 讀量杯上的刻度 (練習)
圆在直线上滚动
Discover Topics
Sphere
Binomial Distribution
Upper and Lower Sum or Riemann Sum
Cosine
Congruence