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正方形和長方形有甚麼特性？
Author:
Ken Cheung
,
Anthony OR 柯志明
Topic:
Rectangle
,
Square
Eng version:
http://ggbtu.be/m79823
GeoGebra
New Resources
兩組對邊相等的四邊形
【案例】2018年全国1卷理科12题
画直线等分三角形的面积
三位數除以一位數（一）
球體建築師
Discover Resources
Angles at the same segment
角α与-α的正弦函数关系
电荷在矩形边界磁场中运动
Gaussian Heptagon construction
圓的基本性質
Discover Topics
Binomial Distribution
Median Line
Stochastic Process or Random Process
Circumcircle or Circumscribed Circle
Reflection