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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
兩組對邊相等和有直角的四邊形
畫出對稱圖形
Claude 解幾何題
找出對稱軸
直角坐標平面上的旋轉變換
Discover Resources
圓錐曲線的線性變換
圆的面积展开的副本
函数作图工具的副本
面积平分线
扇形滚动(圆心角半径可变)
Discover Topics
Special Points
Area
Ellipse
Conic Sections
Pythagoras or Pythagorean Theorem