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Right Triangles in a Circle 圓內的直角三角形
Author:
Alex CHIK
GeoGebra
GeoGebra 互動數學教室
http://www.geogebra.hk
New Resources
GeoGebra笔记功能体验课件
兩組對邊相等和有直角的四邊形
四邊形的特性
異分母分數減法
直角坐標平面上的旋轉變換
Discover Resources
Difference of Two Cubes
一元二次不等式(圖解法)
畫鐘面的副本
探究判定全等三角形的条件（ SSA? & HL！）
爱奇艺
Discover Topics
Area
Quadrilaterals
Optimization Problems
Cuboid
Polygons