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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
四邊形的特性
【案例】2018年全国1卷理科12题
三位數除以一位數（二）
找出對稱軸
兩組對邊相等的四邊形
Discover Resources
linear function
winter vacation homework 3
小精靈
Copy of 圓方程 (標準式與一般式)
總結
Discover Topics
Intersection
Difference and Slope
Area
Secant Line or Secant
Logic