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mooc第四讲椭圆反射
Author:
单晨
GeoGebra
New Resources
画直线等分三角形的面积
畫出對稱圖形
兩組對邊相等和有直角的四邊形
錐體建築師
四邊形的特性
Discover Resources
Demonstration of the angles at the same segment
三角形數
拋物線教學_2016
林昌翰 拋物面鏡
弧長計算
Discover Topics
Subtraction
Rhombus
Quadrilaterals
Optimization Problems
Confidence Interval