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劉虹圻 垂心
Author:
呂麗珠
Topic:
Orthocenter
GeoGebra
New Resources
畫出對稱圖形
画直线等分三角形的面积
球体的体积推导(优化版)
【案例】2018年全国1卷理科12题
三位數除以一位數(一)
Discover Resources
task 2
Newton
畢氏定理-切割法
反比例函数3456
二次方程动态函数曲线
Discover Topics
Conic Sections
Equilateral Triangles
Conditional Probability
Congruence
Cosine