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20200417平面直角坐标系复习T14（3）
Author:
陈敦莹
GeoGebra
New Resources
異分母分數減法
兩組對邊相等和有直角的四邊形
画直线等分三角形的面积
三位數除以一位數（二）
兩組對邊相等的四邊形
Discover Resources
Generalized Pythagorean Theorem
GriffithsTheorem
正四面體反射面
[洋葱] 费马点问题
利用頂點描述二次函數 的複本
Discover Topics
Binomial Distribution
Vectors 2D (Two-Dimensional)
Geometry
Symmetry
Algebra