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一线三直角模型证全等
Author:
陈宜红
Topic:
Constructions
,
Triangles
GeoGebra
New Resources
兩位數加法
第八周作业
三位數除以一位數（二）
三位數除以一位數（一）
【案例】2018年全国1卷理科12题
Discover Resources
圓外切四邊形對邊和等長
動畫的根本animation of root
How to draw an ennegon with ruler and compasses?
Curtate Cycloid
k的几何意义
Discover Topics
Cube
Trigonometry
Circumcircle or Circumscribed Circle
Planes
Straight Lines