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三角形的外心
Author:
侯杰材
GeoGebra
New Resources
算柱 (兩位數)
兩位數加法
拼砌四邊形
異分母分數減法
【案例】2018年全国1卷理科12题
Discover Resources
畫三角形 題1a
哈里斯螺旋 - 框線版 (Harriss Spiral)
我不知道我在幹嘛
Question 2(Angle)
正方形折纸减去两角
Discover Topics
Rational Numbers
Means
Set Theory
Vectors 2D (Two-Dimensional)
Ellipse